SCHUNK ROTA TP Series User instructions

Pneumatic Chuck
ROTA TP
Assembly and operating manual
Translation of the original manual

Imprint
2 06.00 | ROTA TP | Pneumatic Chuck | en | 0889071
Imprint
Copyright:
This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights
reserved.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 0889071
Version: 06.00|07/03/2023|en
Dear Customer,
Thank you for trusting our products and our family-owned company, the leading technology
supplier of robots and production machines.
Our team is always available to answer any questions on this product and other solutions. Ask
us questions and challenge us. We will find a solution!
Best regards,
Your SCHUNK team
Customer Management
Tel. [phone]
Fax [phone]
[e-mail]
Please read the operating manual in full and keep it close to the product.

Table of contents
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Table of Contents
1 General ............................................................................................. 5
1.1 About this manual............................................................................... 5
1.1.1 Presentation of Warning Labels ..................................................... 5
1.1.2 Applicable documents ................................................................. 6
1.1.3 Sizes........................................................................................ 6
1.2 Warranty ........................................................................................... 6
1.3 Scope of delivery................................................................................. 6
2 Basic safety notes ................................................................................ 7
2.1 Intended use...................................................................................... 7
2.2 Not intended use ................................................................................ 7
2.3 Constructional changes......................................................................... 7
2.4 Spare parts ........................................................................................ 8
2.5 Chuck jaws ........................................................................................ 8
2.6 Environmental and operating conditions.................................................. 9
2.7 Personnel qualification ........................................................................ 9
2.8 Personal protective equipment .............................................................. 10
2.9 Notes on safe operation........................................................................ 10
2.10 Transport........................................................................................... 11
2.11 Malfunctions ...................................................................................... 11
2.12 Disposal ............................................................................................ 11
2.13 Fundamental dangers .......................................................................... 12
2.13.1 Protection during handling and assembly ....................................... 12
2.13.2 Protection during commissioning and operation ............................... 12
2.13.3 Protection against dangerous movements ....................................... 13
2.13.4 Notes on particular risks .............................................................. 13
3 Technical data ..................................................................................... 17
3.1 Chuck data ........................................................................................ 17
3.2 Clamping force / speed diagrams ............................................................ 18
3.3 Calculations for clamping force and speed ................................................ 21
3.3.1 Calculation of the required clamping force in case of a given rpm......... 21
3.3.2 Calculation example: required initial clamping force for a given speed .. 24
3.3.3 Calculation of the permissible speed in case of a given initial clamping
force .......................................................................................
25
3.4 Grades of Accuracy .............................................................................. 26
3.5 Permissible imbalance ......................................................................... 26
3.6 Torques per screw ............................................................................... 26
4 Function ............................................................................................ 27
4.1 Principle of Operation .......................................................................... 27

Table of contents
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4.2 Functional testing ............................................................................... 27
4.3 Air transmission system ........................................................................ 28
4.4 Pilot controlled check valve ................................................................... 29
4.5 Clamping or jaw actuation .................................................................... 30
4.6 Power Chuck with extended and standard jaw stroke (LH)............................ 31
5 Transport ........................................................................................... 32
6 Mounting ........................................................................................... 33
6.1 Installing and connecting ..................................................................... 33
6.2 Inclusion ........................................................................................... 34
6.3 Distributor ring ................................................................................... 35
6.3.1 Distributor ring: normal fastening.................................................. 35
6.3.2 Stationary mounting of the distributor ring ..................................... 37
6.3.3 Mounting with bracket ................................................................ 38
6.3.4 Mounting with 2-part clamping ring (D.R.M.B.) ................................ 40
7 Commissioning and maintenance ............................................................. 43
7.1 Initial operation ................................................................................. 43
7.2 Maintenance...................................................................................... 44
7.3 Maintenance intervals.......................................................................... 47
7.4 Hardened Reversible Jaws and Soft Top Jaws ............................................. 47
7.5 Disassembly ....................................................................................... 48
7.6 Assembly........................................................................................... 49
8 Spare parts ......................................................................................... 51
9 Assembly drawings ............................................................................... 53
10 Translation of the original declaration of incorporation ................................. 54
11 Appendix on Declaration of Incorporation, as per 2006/42/EC, Annex II, No. 1 B .... 55

General
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1 General
1.1 About this manual
This manual contains important information for a safe and
appropriate use of the product.
This manual is an integral part of the product and must be kept
accessible for the personnel at all times.
Before starting work, the personnel must have read and
understood this operating manual. Prerequisite for safe working
is the observance of all safety instructions in this manual.
In addition to these instructions, the documents listed
under }1.1.2 [/6] are applicable.
NOTE: The illustrations in this manual are intended to provide a
basic understanding and may deviate from the actual version.
1.1.1 Presentation of Warning Labels
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Dangers for persons!
Non-observance will inevitably cause irreversible injury or death.
WARNING
Dangers for persons!
Non-observance can lead to irreversible injury and even death.
CAUTION
Dangers for persons!
Non-observance can cause minor injuries.
NOTICE
Material damage!
Information about avoiding material damage.

General
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1.1.2 Applicable documents
lGeneral terms of business *
lCatalog data sheet of the purchased product *
lCalculation of the jaw centrifugal forces, "Technology" chapter
in the lathe chuck catalog *
The documents labeled with an asterisk (*) can be downloaded
from schunk.com.
1.1.3 Sizes
This operating manual applies to the following sizes:
lROTA TP
125-26; 160-38; 200-52; 250-68; 315-90; 315-105; 315-115
lROTA TP LH
350-115
1.2 Warranty
If the product is used as intended, the warranty is valid for 24
months from the date of delivery from the production facility or
500 000 cycles* under the following conditions:
lObserve the applicable documents, }1.1.2 [/6]
lObserve the ambient conditions and operating
conditions, }2.6 [/9]
lObserve the specified maintenance and lubrication
intervals, }7 [/43]
Parts touching the workpiece and wear parts are not included in
the warranty.
* A cycle consists of a complete clamping process ("Open" and
"Close").
1.3 Scope of delivery
1 Power lathe chucks
6 T-nuts
2 Elbow connectors
2 Straight connectors
1 Spacer ring
1 Headless screw for fastening the distributor ring
1 Angle for eye bolt
1 Eye bolt
Studs for assembling the chuck
1 Operating manual

Basic safety notes
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2 Basic safety notes
2.1 Intended use
This product is intended for clamping workpieces on machine
tools and other suitable technical devices.
lThe product may only be used within the scope of its technical
data, }3 [/17].
lThe product is intended for industrial and industry-oriented
use.
lAppropriate use of the product includes compliance with all
instructions in this manual.
lThe maximum RPM of the chuck and the required clamping
force must be determined by the user for the respective
clamping task based on the applicable standards and
technical specifications of the manufacturer.
(See also “Calculations for clamping force and RPM” in the
chapter “Technical data”). }3 [/17]
2.2 Not intended use
A not intended use of the product is for example:
lIt is used as a press, a punch, a toolholder, a load-handling
device or as lifting equipment.
lthe product is used for unintended machines or workpieces.
lthe technical data is exceeded when using the product. }3
[/17]
lif workpieces are not clamped properly, paying particular
attention to the clamping forces specified by the
manufacturer.
lif it is used in working environments that are not permissible.
lif the product is operated without a protective cover.
2.3 Constructional changes
Implementation of structural changes
By conversions, changes, and reworking, e.g. additional threads,
holes, or safety devices can impair the functioning or safety of
the product or damage it.
lStructural changes should only be made with the written
approval of SCHUNK.

Basic safety notes
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2.4 Spare parts
Use of unauthorized spare parts
Using unauthorized spare parts can endanger personnel and
damage the product or cause it to malfunction.
lUse only original spare parts or spares authorized by SCHUNK.
2.5 Chuck jaws
Requirements of the chuck jaws
Stored energy can make the product unsafe and poses the danger
of serious injuries and considerable material damage.
lOnly change chuck jaws if no residual energy can be released.
lDo not use welded jaws.
lThe chuck jaws should be designed to be as light and as low
as possible. The clamping point must be as close as possible
to the chuck face (clamping points at a greater distance lead
to greater surface pressure in the jaw guidance and can
significantly reduce the clamping force).
lIf for constructional reasons the special chuck jaws are
heavier than the top jaws assigned to the lathe chuck, greater
centrifugal forces must be accounted for when defining the
required clamping force and the recommended speed.
lThe maximum recommended speed may only be operated in
conjunction with maximum actuating force and only with the
lathe chuck in optimum, fully functioning condition.
lAfter a collision, the lathe chuck and the chuck jaws must be
subjected to a crack test before being used again. Damaged
parts must be replaced with original SCHUNK spare parts.
lRenew the chuck jaw mounting screws if there are signs of
wear or damage. Only use screws with a quality of 12.9.
lScrew the jaw mounting screws into the bore holes furthest
apart.

Basic safety notes
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2.6 Environmental and operating conditions
Required ambient conditions and operating conditions
Incorrect ambient and operating conditions can make the
product unsafe, leading to the risk of serious injuries,
considerable material damage and/or a significant reduction to
the product's life span.
lMake sure that the product is used only in the context of its
defined application parameters, }3 [/17].
lMake sure that the product is a sufficient size for the
application.
lOnly use high-quality cooling emulsions with anti-corrosive
additives during processing.
lLubricating intervals must be adhered to }7.3 [/47].
2.7 Personnel qualification
Inadequate qualifications of the personnel
If the personnel working with the product is not sufficiently
qualified, the result may be serious injuries and significant
property damage.
lAll work may only be performed by qualified personnel.
lBefore working with the product, the personnel must have
read and understood the complete assembly and operating
manual.
lObserve the national safety regulations and rules and general
safety instructions.
The following personal qualifications are necessary for the
various activities related to the product:
Trained electrician Due to their technical training, knowledge and experience,
trained electricians are able to work on electrical systems,
recognize and avoid possible dangers and know the relevant
standards and regulations.
Qualified personnel Due to its technical training, knowledge and experience,
qualified personnel is able to perform the delegated tasks,
recognize and avoid possible dangers and knows the relevant
standards and regulations.
Instructed person Instructed persons were instructed by the operator about the
delegated tasks and possible dangers due to improper behaviour.
Service personnel of
the manufacturer
Due to its technical training, knowledge and experience, service
personnel of the manufacturer is able to perform the delegated
tasks and to recognize and avoid possible dangers.

Basic safety notes
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2.8 Personal protective equipment
Use of personal protective equipment
Personal protective equipment serves to protect staff against
danger which may interfere with their health or safety at work.
lWhen working on and with the product, observe the
occupational health and safety regulations and wear the
required personal protective equipment.
lObserve the valid safety and accident prevention regulations.
lWear protective gloves to guard against sharp edges and
corners or rough surfaces.
lWear heat-resistant protective gloves when handling hot
surfaces.
lWear protective gloves and safety goggles when handling
hazardous substances.
lWear close-fitting protective clothing and also wear long hair
in a hairnet when dealing with moving components.
2.9 Notes on safe operation
Incorrect manner of working by personnel
An incorrect manner of working can make the product unsafe
and risk the danger of serious injuries and considerable material
damages.
lAvoid any manner of working that may interfere with the
function and operational safety of the product.
lUse the product as intended.
lObserve the safety notes and assembly instructions.
lDo not expose the product to any corrosive media. Products
for special ambient conditions are excluded.
lRectify malfunctions as soon as they occur.
lObserve the care and maintenance instructions.
lObserve the current safety, accident prevention, and
environmental protection regulations for the application field
of the product.
lFollowing a longer shutdown period (more than approx. 6
hours), always re-tension the clamped lathe chuck in order to
compensate for the setting properties of the clamping
situation or possible pressure losses and the resulting loss of
clamping force.

Basic safety notes
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2.10 Transport
Handling during transport
Incorrect handling during transport may impair the product's
safety and cause serious injuries and considerable material
damage.
lWhen handling heavy weights, use lifting equipment to lift
the product and transport it by appropriate means.
lSecure the product against falling during transportation and
handling.
lStand clear of suspended loads.
2.11 Malfunctions
Behavior in case of malfunctions
lImmediately remove the product from operation and report
the malfunction to the responsible departments/persons.
lOrder appropriately trained personnel to rectify the
malfunction.
lDo not recommission the product until the malfunction has
been rectified.
lTest the product after a malfunction to establish whether it
still functions properly and no increased risks have arisen.
2.12 Disposal
Handling of disposal
The incorrect handling of disposal may impair the product's
safety and cause serious injuries as well as considerable material
and environmental harm.
lFollow local regulations on dispatching product components
for recycling or proper disposal.

Basic safety notes
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2.13 Fundamental dangers
General
lObserve safety distances.
lNever deactivate safety devices.
lBefore commissioning the product, take appropriate
protective measures to secure the danger zone.
lDisconnect power sources before installation, modification,
maintenance, or calibration. Ensure that no residual energy
remains in the system.
lIf the energy supply is connected, do not move any parts by
hand.
lDo not reach into the open mechanism or movement area of
the product during operation.
2.13.1 Protection during handling and assembly
Incorrect handling and assembly
Incorrect handling and assembly may impair the product's safety
and cause serious injuries and considerable material damage.
lHave all work carried out by appropriately qualified
personnel.
lFor all work, secure the product against accidental operation.
lObserve the relevant accident prevention rules.
lUse suitable assembly and transport equipment and take
precautions to prevent jamming and crushing.
Incorrect lifting of loads
Falling loads may cause serious injuries and even death.
lStand clear of suspended loads and do not step into their
swiveling range.
lNever move loads without supervision.
lDo not leave suspended loads unattended.
2.13.2 Protection during commissioning and operation
Falling or violently ejected components
Falling and violently ejected components can cause serious
injuries and even death.
lTake appropriate protective measures to secure the danger
zone.
lNever step into the danger zone during operation.

Basic safety notes
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2.13.3 Protection against dangerous movements
Unexpected movements
Residual energy in the system may cause serious injuries while
working with the product.
lSwitch off the energy supply, ensure that no residual energy
remains and secure against inadvertent reactivation.
lNever rely solely on the response of the monitoring function
to avert danger. Until the installed monitors become effective,
it must be assumed that the drive movement is faulty, with its
action being dependent on the control unit and the current
operating condition of the drive. Perform maintenance work,
modifications, and attachments outside the danger zone
defined by the movement range.
lTo avoid accidents and/or material damage, human access to
the movement range of the machine must be restricted. Limit/
prevent accidental access for people in this area due through
technical safety measures. The protective cover and protective
fence must be rigid enough to withstand the maximum
possible movement energy. EMERGENCY STOP switches must be
easily and quickly accessible. Before starting up the machine
or automated system, check that the EMERGENCY STOP system
is working. Prevent operation of the machine if this protective
equipment does not function correctly.
2.13.4 Notes on particular risks
DANGER
Risk of fatal injury from suspended loads!
Falling loads can cause serious injuries and even death.
lStand clear of suspended loads and do not step within their
swiveling range.
lNever move loads without supervision.
lDo not leave suspended loads unattended.
lWear suitable protective equipment.

Basic safety notes
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DANGER
Risk of fatal injury to operating personnel due to the workpiece
falling down or being flung out in the event of a power failure.
In the event of a power failure, the lathe chuck's clamping force
may fail immediately and the workpiece may be released in an
uncontrolled manner. This poses a risk of death or injury to the
operating personnel and can result in serious damage to the
system.
lThe machine manufacturer and the operator of the machine
must carry out and document a hazard assessment and risk
analysis to ensure that suitable measures are taken to
maintain the lathe chuck's clamping force until the machine
comes to a standstill and the workpiece can be secured (e.g.
using a crane or suitable lifting equipment).
lThe machines and equipment must fulfill the minimum
requirements of the EC Machinery Directive; specifically, they
must have effective technical measures to protect against
potential mechanical hazards.
lPerform regular maintenance.
DANGER
Possible risk of fatal injury to operating personnel if a jaw
breaks or if the lathe chuck fails because the technical data
have been exceeded and a workpiece is released or parts fly off
lThe technical data specified by the manufacturer for using
the lathe chuck must never be exceeded.
lThe lathe chuck may only be used on machines and facilities
that fulfill the minimum requirements of the EC Machinery
Directive; specifically, they must have effective technical
measures to protect against possible mechanical hazards.

Basic safety notes
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DANGER
Possible risk of fatal injury to operating personnel from
clothing or hair being caught on the lathe chuck and being
dragged into the machine
Loose clothing or long hair may become caught on projecting
parts of the lathe chuck and be drawn into the machine.
lThe machines and equipment must fulfill the minimum
requirements of the EC Machinery Directive; specifically, they
must have effective technical measures to protect against
potential mechanical hazards.
lAlways wear tight-fitting clothing and a hairnet when
working on the machine and the lathe chuck.
CAUTION
Danger of slipping and falling in case of dirty environment
where the chuck is used (e.g. by cooling lubricants or oil).
lEnsure that the working environment is clean before starting
assembly and installation work.
lWear suitable safety shoes.
lFollow the safety and accident-prevention regulations when
operating the chuck, especially when working with machine
tools and other technical equipment.
CAUTION
Danger of limbs being crushed by opening and closing of the
chuck jaws during manual loading and unloading or when
replacing moving parts.
lDo not reach between the chuck jaws.
lAutomatic loading is preferred.
lIf manual loading is used, adjust the jaw position so that the
opening gap between the jaw and the workpiece is less than
4 mm.
lWear protective gloves.
lObserve the safety and accident prevention regulations
during operation of the chuck, especially in connection with
machining centers and other technical equipment.

Basic safety notes
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CAUTION
Risk of burns due to workpieces with high temperatures.
lWear protective gloves when removing the workpieces.
lAutomatic loading is preferred.
CAUTION
Risk of damages due to incorrect choice of clamping position
for chuck jaws on workpiece.
If an incorrect clamping position is chosen for the chuck jaws on
workpiece, the base and the top jaws may be damaged.
lThe T-nuts combine the top jaws with the base jaws and they
should never protude over the base jaws in radial direction.
lThe outer diameter of the screwed top jaws must not exceed
the outer diameter of the chuck by more than 10%.
CAUTION
Hazard from vibration due to imbalanced rotating parts and
noise generation.
Physical and mental strains due to imbalanced workpieces and
noise during the machining process on the clamped and rotating
workpiece.
lEnsure the chuck's axial and concentric runout.
lCheck options for remedying imbalances on special top jaws
and workpieces.
lReduce the speed.
lWear hearing protection.

Technical data
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3 Technical data
3.1 Chuck data
Size 125-26 160-38 200-52 250-6
8
315-90 315-10
5
315-115 LH
350-11
5
Chuck through bore
[mm]
26 38 52 68 90 105 115 115
Max. clamping force
[kN]
22 39 68 105 140 100 90 90
Max. rotation speed
[min-1]
4200 4200 3800 3500 2500 3000 2200 2200
Stroke per jaw [mm] 3.0 4.2 4.2 5.0 5.0 5.0 5.0 5.0
Serration of the jaws
[mm]
1/16"x90°
Chuck diameter [mm] 130 165 205 255 320 335 350 350
Distributor ring Ø
[mm]
204 255 300 372 413 372 372 372
Centrifugal torque of
base jaw [kgm] McGB
0.012 0.033 0.061 0.118 0.186 0.200 0.209 0.275
Max. jaw eccentricity
of center of gravity in
axial direction [mm]
amax
16 24 30 40 32 32 32 32
The specified maximum speed of rotation stated only applies
when using the maximum clamping force and the SHB-type, soft,
standard stepped jaws that go with the chuck.
WARNING
Risk of personal injury and property damage due to parts flying
off in the event of a screw breakage on unhardened top jaws!
lSoft standard top jaws must be hardened in the countersink
region.
They should only be depth-hardened, not surface-
hardened.
Ensure minimal weight for all jaws.
For unhardened top jaws or chuck jaws in special design, the
permissible RPM according to VDI 3106 must be calculated for the
respective machining job. Whereby the recommended maximum
speed must not be exceeded. The values calculated must be
checked by means of dynamic measurement using a clamping
force tester.

Technical data
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3.2 Clamping force / speed diagrams
The diagrams refer to 3-jaw-chuck.
Clamping force/RPM curves have been determined by using hard
jaws. In the determination process, the maximum actuating force
was applied and the jaws were set flush with the outer diameter
of the chuck.
It is also assumed the chuck is in perfect condition and
lubricated with SCHUNK LINOMAX plus special grease .
If one or more of these prerequisites is altered, the diagrams will
no longer be valid.
Chuck setup for clamping force/RPM diagram
Measuring point
FspB Clamping force per jaw S Center of gravity
rsCenter of gravity radius amax Max. jaw center of gravity
eccentricity in axial direction
Fmax Max. actuating force
Clamping force / speed diagram ROTA TP 125-26
Speed of rotation
Minimum required
clamping force
33%
Clamping force

Technical data
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Clamping force / speed diagram ROTA TP 160-38
Speed of rotation
Minimum required
clamping force 33%
Clamping force
Clamping force / speed diagram ROTA TP 200-52
Speed of rotation
Minimum required
clamping force 33%
Clamping force
Clamping force / speed diagram ROTA TP 250-68
Speed of rotation
Minimum required
clamping force 33%
Clamping force

Technical data
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Clamping force / speed diagram ROTA TP 315-90
Speed of rotation
Minimum required
clamping force 33%
Clamping force
Clamping force / speed diagram ROTA TP 315-105
Speed of rotation
Minimum required
clamping force 33%
Clamping force
Clamping force / speed diagram ROTA TP 350-115
Speed of rotation
Minimum required
clamping force 33%
Clamping force