NPK M20S User manual

MATERIAL PROCESSOR
INSTRUCTION MANUAL
MODELS:
M20S
M20G
M20C
M20K
M28S
M28G
M28C
M28K
M38S
M38G
M38C
M38K
“Use Genuine NPK Parts”
7550 Independence Drive
Walton Hills, OH 44146-5541
Phone [phone]
Toll-free [phone]
Fax [phone]
© Copyright 2018 NPK Construction Equipment, Inc. www.npkce.com M000-9600I 10-18
Material Processor Instruction Manual

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CONTENTS
SAFETY ............................................................................................................................ 5
OPERATION ............................................................................................................... 6
MAINTENANCE .......................................................................................................... 7
INTRODUCTION ............................................................................................................... 9
CARRIER COMPATIBILITY .............................................................................................. 9
M-SERIES SPECIFICATIONS .......................................................................................... 10
M20C MATERIAL PROCESSOR ................................................................................ 10
M20G MATERIAL PROCESSOR ............................................................................... 11
M20K MATERIAL PROCESSOR ................................................................................ 12
M20S MATERIAL PROCESSOR ................................................................................ 13
M28C MATERIAL PROCESSOR ................................................................................ 14
M28G MATERIAL PROCESSOR ............................................................................... 15
M28K MATERIAL PROCESSOR ................................................................................ 16
M28S MATERIAL PROCESSOR ................................................................................ 17
M38C MATERIAL PROCESSOR ................................................................................ 18
M38G MATERIAL PROCESSOR ............................................................................... 19
M38K MATERIAL PROCESSOR ................................................................................ 20
M38S MATERIAL PROCESSOR ................................................................................ 21
K JAW CUTTING CAPACITY ........................................................................................... 22
SERIAL NUMBER LOCATION .......................................................................................... 23
M-SERIES JAW IDENTIFICATION ................................................................................... 26
JAW SET IDENTIFICATION ............................................................................................. 30
PROCESSOR – BOOSTER AND CYLINDER .................................................................. 31
HYDRAULIC INSTALLATION ........................................................................................... 40
HYDRAULIC KITS ...................................................................................................... 40
FLOW DIRECTION .................................................................................................... 40
SHUT-OFF VALVES ................................................................................................... 41
TEST PORT LOCATIONS .......................................................................................... 41
HYDRAULIC QUICK DISCONNECTS ........................................................................ 43
PREVENTION OF CONTAMINATION ........................................................................ 45
MOUNTING INSTALLATION ............................................................................................ 46
M-SERIES TOP BRACKET ........................................................................................ 46
MOUNTING TO THE CARRIER ................................................................................. 47
REMOVAL FROM THE CARRIER .............................................................................. 47
STORAGE OF THE MATERIAL PROCESSOR ................................................................ 48
HOSE INSTALLATION ...................................................................................................... 49
HOSE INSTALLATION TIPS ...................................................................................... 49
OPERATING INSTRUCTIONS ......................................................................................... 51
GENERAL MAINTENANCE .............................................................................................. 59
DAILY INSPECTION AND MAINTENANCE ............................................................... 59
LUBRICATION POINTS ............................................................................................. 61
CUTTER BLADE MAINTENANCE .............................................................................. 62
M20K, M28K, M38K JAW MAINTENANCE ................................................................ 64
DAILY MAINTENANCE............................................................................................... 64
CUTTER BLADE MAINTENANCE – K JAWS ............................................................ 65
BLADE-TO-BLADE CLEARANCE ........................................................................ 65
PIERCING TIP TO TUNNEL GAP .............................................................................. 65

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CONTENTS
K JAW BLADE SET UP PROCEDURE ...................................................................... 66
COMPONENT DESCRIPTION ................................................................................... 67
K JAW BLADE MAINTENANCE AND ADJUSTMENT ................................................ 68
PIERCING TIP MAINTENANCE AND REPLACEMENT ............................................. 73
MAINTENANCE .......................................................................................................... 73
TAPER LINER FOR M SERIES PROCESSOR “K” JAW ............................................ 74
BUILD-UP OF THE PIERCING TIP ............................................................................ 75
REPLACING THE PIERCING TIP .............................................................................. 75
JOINING AND BUILD-UP ........................................................................................... 76
DETERMINING REPLACEMENT OR BUILD UP ....................................................... 77
JAW INSPECTION AND MAINTENANCE ........................................................................ 80
JAW INSPECTION: S, C, and G JAWS ..................................................................... 80
WEEKLY INSPECTION ....................................................................................... 80
JAW PROFILES: S, C, AND G JAWS ....................................................................... 80
JAW BUILD-UP AND HARDFACING (M38S, M28S, and M20S) ............................... 80
JAW BUILD-UP AND HARDFACING (M38C, M28C, and M20C) .............................. 81
TEETH REPLACEMENT ............................................................................................ 82
REPLACEABLE TOOTH PLATES – G JAWS ............................................................ 83
JAW AND TOOTH REBUILD PROCEDURE: S, C, and G JAWS ............................. 83
JAW CONTACT AREAS ............................................................................................. 86
S, C, and G JAW CONTACT AREAS................................................................... 86
HARDFACING: K JAWS ............................................................................................ 87
FRAME MAINTENANCE – REPAIR OF MAIN FRAME .................................................... 88
ROUTINE WELD REPAIR .......................................................................................... 88
CYLINDER INSPECTION AND MAINTENANCE .............................................................. 90
BOOSTER CYLINDER ............................................................................................... 90
DISASSEMBLY .................................................................................................... 90
INSPECTING AND CLEANING CYLINDER COMPONENTS ..................................... 93
REPAIR TOOLS AND EQUIPMENT ........................................................................... 95
ASSEMBLY ................................................................................................................. 95
SLEWING RING INSPECTION AND MAINTENANCE ..................................................... 102
MEASURING MAXIMUM AXIAL MOVEMENT............................................................ 102
ROTATION BEARING OUTER DIRT SEAL REPLACEMENT .................................... 103
SWIVEL MANIFOLD MAINTENANCE .............................................................................. 104
SWIVEL MANIFOLD ASSEMBLY............................................................................... 104
LEAKAGE OF THE SEALS......................................................................................... 104
TESTING THE SWIVEL SEALS FOR INTERNAL LEAKAGE .................................... 105
REPLACEMENT OF THE SEALS IN THE SWIVEL ................................................... 106
JAW SET INTERCHANGE................................................................................................ 110
TOOL AND SUPPLIES ............................................................................................... 110
PROCEDURE FOR JAW SET INTERCHANGE ......................................................... 111
UNIT POSITIONING ................................................................................................... 111
DETACHMENT OF THE JAWS FROM THE CYLINDER SUB-ASSEMBLIES ........... 113
DETACHMENT OF THE JAW SET FROM THE MAIN FRAME ................................. 115
JAW SET REMOVAL .................................................................................................. 117
JAW SET STORAGE .................................................................................................. 118

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CONTENTS
JAW SET INSTALLATION INTO THE MAIN FRAME ................................................. 118
ATTACHMENT OF JAW SET TO THE MAIN FRAME ............................................... 118
ATTACHMENT OF THE JAWS TO THE CYLINDER SUB-ASSEMBLIES ................. 120
FASTENER TORQUE SPECIFICATIONS ........................................................................ 122
HOSE TORQUE SPECIFICATIONS ................................................................................. 127
JIC ENDS ................................................................................................................... 127
ORFS ENDS ............................................................................................................... 127
TROUBLESHOOTING ...................................................................................................... 128
DETERMINE THE TYPE OF PROBLEM .................................................................... 128
DETERMINE THE CAUSE OF THE PROBLEM ......................................................... 128
LOSS OF POWER...................................................................................................... 128
TROUBLESHOOTING GUIDE FOR LOW POWER ................................................... 129
RELIEF VALVE CHECKS..................................................................................... 129
MEASURING OPERATING PRESSURES ................................................................. 131
RELIEF VALVE CHECKING AND SETTING PROCEDURE ...................................... 131
PRESSURE INTENSIFIER SEQUENCE VALVE AND RELIEF VALVE ACTUATION 133
MATERIAL PROCESSOR SEQUENCE, RELIEF VALVE AND CARRIER RELIEF
VALVE SETTINGS ..................................................................................................... 134
RELIEF VALVE LOCATION ....................................................................................... 134
PRESSURE INTENSIFIER OPERATION ................................................................... 137
PRESSURE INTENSIFIER (BOOSTER) .................................................................... 137
RAPID CONTINUOUS CLICKING IS HEARD AND THE MATERIAL IS NOT BEING
CRUSHED/SHEARED AS EXPECTED ...................................................................... 137
CHECKING BOOSTED PRESSURE .......................................................................... 138
SLOW CYCLE SPEED ............................................................................................... 139
TEST PROCEDURE ................................................................................................... 139
CHECKING THE HYDRAULIC FLOW AT RATED PRESSURE ................................ 141
JAW DRIFT ................................................................................................................ 143
TO DETERMINE IF THE JAW DRIFT IS WITH THE MATERIAL PROCESSOR OR
THE CARRIER............................................................................................................ 143
ROTATION ................................................................................................................. 144
KEYWORDS FOR COMMON PROCESSOR COMPONENTS ......................................... 147
KEYWORDS FOR COMMON PROCESSOR CYLINDER COMPONENTS ...................... 148
WARRANTY STATEMENTS ............................................................................................. 149
NOTES .............................................................................................................................. 151
SERVICE RECORD .......................................................................................................... 151

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SAFETY
Safety notices in NPK Instruction Manuals follow ISO and ANSI standards for
safety warnings:
DANGER (red) notices indicate an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING (orange) notices indicate a potentially hazardous
situation which, if not avoided, could result in death or serious
injury.
CAUTION (yellow) notices indicate a potentially hazardous situation,
which, if not avoided, may result in minor or moderate injury.
ATTENTION (blue) notices in NPK Instruction Manuals are an NPK
standard to alert the reader to situations which, if not avoided, could
result in equipment damage.
WARNING – FALLING OR FLYING DEBRIS decals are
included with each NPK MATERIAL PROCESSOR. The
decal (part number H100-7210) must be installed in the
cab, visible to the operator.
WARNING – STAY CLEAR decal (part number H100-
7200) is installed on all NPK Crushers, Shears, and
MATERIAL PROCESSORS. Keep them clean and
visible. NPK will provide decals free of charge as
needed.

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Warning Decal for Cab Installation
SAFETY
OPERATION
1. Operator personnel must read and understand the NPK INSTRUCTION MANUAL
to prevent serious or fatal injury.
2. FLYING OR FALLING DEBRIS CAN CAUSE SERIOUS OR FATAL INJURY.
Keep personnel and bystanders clear of the MATERIAL PROCESSOR while in
operation.
3. Do not operate MATERIAL PROCESSOR without
an impact resistant shield between the
MATERIAL PROCESSOR and operator. Operate
with extreme caution near walls or columns that
may collapse and near concrete debris that may
fall.
4. Operate the MATERIAL PROCESSOR from the
operator’s seat only.
5. Use two people whenever operator visibility is
limited, one to operate the MATERIAL
PROCESSOR, the other to guide operations.
6. Do not leave a load suspended in air.
7. Do not pass a load over people, vehicles, etc.
8. Do not operate the MATERIAL PROCESSOR
within reach of power lines.
9. Do not climb, sit, or ride on the MATERIAL PROCESSOR.
10. Match the MATERIAL PROCESSOR size to excavator according to NPK
recommendations, see page 9. The excavator must be stable during MATERIAL
PROCESSOR operation and during transport.
11. Do not operate without inspection (access) covers in place.
12. Be especially cautious around hydraulic lines. Hydraulic oil can be extremely HOT!
Avoid skin contact with hydraulic oil. It can cause severe burns!
13. Protect hands and body from hydraulic fluids under pressure. Escaping high
pressure fluid can penetrate the skin, causing serious injury. Avoid the hazard by
relieving pressure before disconnecting any lines. Search for leaks with a piece of
cardboard, or other object. If an accident occurs, see a doctor immediately!
Hydraulic fluid injected into the skin must be surgically removed immediately
or gangrene may result!
14. The pressure generated by the power intensifier on the MATERIAL PROCESSOR
exceeds 10,000 psi (690 bar), which is higher than commonly encountered on
hydraulic equipment. To avoid bodily harm and/or injury when conducting
inspection checks, use gauges, hoses and fittings rated at 15,000 psi (1035 bar).
For parts replacement, use only genuine NPK replacement parts. Contact NPK
Service Department at 1-800-225-4379.
15. When removing or installing mounting pins, beware of flying metal chips.

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SAFETY
MAINTENANCE
1. Use only NPK supplied replacement parts. NPK specifically disclaims any
responsibility for bodily injury or MATERIAL PROCESSOR damage that results
from the use of parts not sold or approved by NPK.
2. Use extreme caution in handling. A fully assembled MATERIAL PROCESSOR can
weigh up to 5 tons. Sub-assemblies range in weight from hundreds to thousands of
pounds. To avoid bodily harm, use lifting and securing mechanisms of adequate
capacity to support loads. Seek the aid of an assistant as much as possible, and
always when handling heavier sub-assemblies.
3. Use extreme caution when changing jaw sets, particularly in the field. Employ lifting
and securing mechanisms of adequate capacity to support the jaw sets. At least
two people are required to change a jaw set safely in the field.
4. Wear safety glasses and protective clothing when working on the MATERIAL
PROCESSOR. Wear thermal-protective gloves when handling heated parts.
5. Prevent exposure to hazardous fumes. Remove all paint, grease, and oil before
heating, cutting or welding on the MATERIAL PROCESSOR.
6. Be especially cautious around hydraulic lines. Hydraulic oil can be extremely HOT!
Avoid skin contact with hydraulic oil. It can cause severe burns!
7. Protect hands and body from hydraulic fluids under pressure. Escaping fluid
under pressure can penetrate the skin, causing serious injury. Avoid the hazard by
relieving pressure before disconnecting any lines. Search for leaks with a piece of
cardboard, or other object. If an accident occurs, see a doctor immediately!
Hydraulic fluid injected into the skin must be surgically removed within a few
hours or gangrene may result.
8. The pressure generated by the power intensifier on the MATERIAL PROCESSOR
exceeds 10,000 psi (690 bar), which is higher than commonly encountered on
hydraulic equipment. To avoid bodily harm and/or injury when conducting
inspection checks, use gauges, hoses and fittings rated at 15,000 psi (1035 bar).
For parts replacement, use only genuine NPK replacement parts. Contact NPK
Service Department at 1-800-225-4379.
9. When removing or installing mounting pins, beware of flying metal chips.

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SAFETY
MAINTENANCE
STANDARD PRACTICES
Maintenance of and repairs to the MATERIAL PROCESSOR should be performed by
an experienced service technician, thoroughly familiar with all standard practices and
procedures, and most importantly, all safety precautions. The following is a review of
common standard practices to be followed when working with hydraulic equipment, and
is not meant to be all-inclusive. Rather, this review is presented as a reminder as to
some of the unique characteristics of hydraulic equipment.
 The prevention of foreign contaminant damage is critical when working with
hydraulic equipment. Protect exposed holes and parts to guard against entry of
contaminants.
 Mark the location and position of mating parts as an aid to re-assembly. Mark
corresponding parts uniquely to reflect their relationship, including proper location,
position, orientation, and/or alignment.
DO:
 During assembly, observe all markings made during disassembly, and all
corresponding features of mating parts to ensure proper location, position,
orientation, and alignment.
 During disassembly of a sub-assembly, place removed components on a clean, dry
surface, in proper relative position as an aid in re-assembly.
 Always inspect threaded areas on components. Repair or replace as required.
 Use care to avoid scratches, nicks, dents, or other damage to machined surfaces of
mating components.
 When securing a component, always tighten cap screws gradually in an opposing
pattern, applying the specified torque.
 Grease can be used to temporarily hold a part in place while the abutting part is
placed into position.
 Always use common sense and exercise standard safety precautions when working
with all tools and equipment required to maintain, repair or troubleshoot the
MATERIAL PROCESSOR.
ATTENTION

- 9 -
INTRODUCTION
Thank you for your purchase of an NPK attachment. NPK prides itself in the design
and manufacture of high quality attachments. The quality workmanship and materials,
which go into all of our attachments, will provide maximum service life. With proper
care and use, your NPK attachment should provide you with many years of productive
service.
The purpose of this manual is to provide you with information and instructions required
to properly operate and maintain the M20, M28, or M38 MATERIAL PROCESSOR.
This will result in maximum ATTACHMENT reliability and productivity.
Read this manual thoroughly before attempting to operate, remove, disassemble,
repair, or troubleshoot the MATERIAL PROCESSOR or any of its components. For
additional information or help with any problem encountered, please contact your
authorized NPK dealer.
Follow all the safety precautions contained in this manual. Failure to follow safety
precautions can result in death, personal injury, injury to others and property
damage.
Use replacement parts sold by NPK only. NPK is not responsible for failures resulting
from alterations not approved by NPK or substitution of parts not sold by NPK.
CARRIER COMPATIBILITY
These carrier weight ranges are intended as a guideline only. Other factors, such as
stick length, counterweights, undercarriage, etc., must be taken into consideration.
Mounting a MATERIAL PROCESSOR that is too heavy for the carrier can be
dangerous and damage the carrier. Verify carrier stability with the MATERIAL
PROCESSOR before transport or operation.
Mounting a MATERIAL PROCESSOR that is too small for the carrier can damage the
MATERIAL PROCESSOR and void warranties. Please consult NPK Service or
Engineering for specific detailed information.
PROCESSOR
RECOMMENDED CARRIER WEIGHT RANGE
MODEL
3rd member mounting
US ton
(Metric ton)
M20
20 - 25
(18 - 23)
M28
25 - 40
(23 - 36)
M38
33 - 55
(30 - 50)
Specifications subject to change without notice.

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M-SERIES SPECIFICATIONS
M20C MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M20C
4,440
(2,015)
34.5
(876)
26-53
(100-200)
1.4
2.8
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M20C
3,625
(250)
78
(71)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

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M-SERIES SPECIFICATIONS
M20G MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M20G
4,520
(2,055)
30.3
(770)
26-53
(100-200)
1.4
2.8
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M20G
3,625
(250)
84
(76)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

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M-SERIES SPECIFICATIONS
M20K MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M20K
4,530
(2,060)
21.1
(535)
26-53
(100-200)
1.4
2.8
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M20K
3,625
(250)
91
(82)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 13 -
M-SERIES SPECIFICATIONS
M20S MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M20S
4,355
(1,980)
37
(940)
26-53
(100-200)
1.4
2.8
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M20S
3,625
(250)
78
(71)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 14 -
M-SERIES SPECIFICATIONS
M28C MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M28C
6,500
(2,950)
36.2
(920)
50-80
(190-300)
1.7
3.1
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M28C
3,625
(250)
116
(105)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 15 -
M-SERIES SPECIFICATIONS
M28G MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M28G
6,850
(3,107)
35.8
(910)
50-80
(190-300)
1.7
3.1
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M28G
3,625
(250)
125
(114)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 16 -
M-SERIES SPECIFICATIONS
M28K MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M28K
6,900
(3,130)
25.1
(637)
50-80
(190-300)
1.7
3.1
MODEL
Maximum
Crushing Force
Operating
Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M28K
3,625
(250)
133
(121)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 17 -
M-SERIES SPECIFICATIONS
M28S MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M28S
6,400
(2,915)
42
(1,067)
50-80
(190-300)
1.7
3.1
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M28S
3,625
(250)
115
(105)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 18 -
M-SERIES SPECIFICATIONS
M38C MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M38C
8,590
(3,900)
48.4
(1,230)
60-100
(225-380)
2.1
3.8
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M38C
3,625
(250)
143
(130)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 19 -
M-SERIES SPECIFICATIONS
M38G MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M38G
9,100
(4,140)
45
(1,142)
60-100
(225-380)
2.1
3.8
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M38G
3,625
(250)
152
(138)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.

- 20 -
M-SERIES SPECIFICATIONS
M38K MATERIAL PROCESSOR
MODEL
Weight
Maximum Jaw
Oil Flow
Cycle Time
Opening
seconds
lb.
(kg)
in.
(mm)
gpm
(lpm)
open
close
M38K
9,370
(4,260)
30.2
(766)
60-
100
(225-380)
2.1
3.8
MODEL
Maximum
Crushing Force
Operating Pressure
at Tip
US
(Metric
psi
(bar)
Ton
Ton)
M38K
3,625
(250)
170
(154)
Specifications subject to change without notice.
Cycle time is full stroke at maximum flow.
Carrier flow is set at minimal operating pressure of 1000 psi (69 bar).
*Maximum operating pressure is determined by reliefs in the crusher.