Parker HB632 User manual

Hydraulic Tube Bender
Model HB632
Bulletin 4391-B26

Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
www.parker.com/tfd
Bulletin 4391-B26 Hydraulic Tube Bender
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL
INJURY AND PROPERTY DAMAGE.
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having technical expertise. It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog. Due
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subsidiaries at any time without notice.
WARNING
 Copyright 2016, Parker Hannifin Corporation, All Rights Reserved
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed
by the provisions stated in the “Offer of Sale”.
Offer of Sale
Table of Contents
Table of Contents
Introduction........................................................................... 1
Bender Parts and Accessories .............................................2
Radius Blocks.......................................................................3
Side Blocks........................................................................... 4
Clamp Blocks........................................................................4
Medium to Heavy Wall Tube Bending .............................5 – 7
Thin Wall Tube Bending with Mandrel Equipment ........8 – 10
Parts Schematic .........................................................11 – 13
Maintenance....................................................................... 14
Warranty ............................................................................14
Troubleshooting ..................................................................14
Offer of Sale .......................................................................17

1Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
www.parker.com/tfd
Bulletin 4391-B26 Hydraulic Tube Bender
Introduction
Parker Hydraulic Tube Bender
Model HB632
For 3/8" – 2" (10-50mm) tubing
and 3/8 to 1-1/2 IPS Pipe
The Parker Model HB632 Tube Bender is a
hydraulically operated bender for bending
annealed steel and stainless steel tubing
from 3/8" O.D. through 2" O.D. It is oper-
ated by means of a separate power source
producing 10,000 psi hydraulic pressure. It
can be operated without bolting to a table or
bench if no mandrels are required, making it
an excellent unit to move about and use
at the point where the tubing installation is
being made. It can also be attached to a
table and used with mandrels.
Capacity
Table 1 at right assigns a Model Code for
each model of Parker tube benders. Table 2
gives the capacity for all Parker benders. The
Model HB632 is represented by model code
C so you can easily check for its capabilities in
Table 2.
Part No.: 631050
Bender Construction
The bender consists of a cast aluminum housing, with a hydraulically
actuated drive mechanism which enables an operator to make bends up to
180° in one continuous smooth operation on tubing up to 2" in diameter.
Specifications:
1) Min. tube size 3/8"
2) Max. tube size 2"
3) Min. bend radius 1-1/8"
4) Max. bend radius 12" (special order)
5) Max. tube bend 180°
6) Weight — 170 lbs. (77.1 kg) without accessories
7) Minimum tube wall thickness (% of O.D.) 4% with
mandrel, 7% without mandrel
8) The HB632 is capable of bending 1/2" O.D. and
under fully annealed steel and stainless steel tubing
with no limit on tube wall thickness
9) The HB632 is capable of bending SOFT aluminum
and copper tubing with no limit on wall thickness.
10) For HARD copper, ALLOY STEEL, and HIGH
STRENGTH aluminum, use the tabulations shown
for stainless steel.
Tube Bender Model Codes
Model
Code
Model
No.
Tubing O.D.
Capacity
Bender
Type
Rated Torque
(in./lbs.)
A 412 1/4" – 3/4" Worm & Gear 2,700
B 424 1/4" – 1-1/4" Worm & Gear 11,000
C HB632 1/4" – 2" Hydraulic 52,000
D CP432 3/8" – 2" Hydraulic N/A
Table 1 – Tube Bender Model Codes
Tube Benders Maximum Capacity Guide*
Tube
O.D.
(in.) Material
Tube Wall Thickness (inches)
0.035 0.049 0.058 0.065 0.072 0.083 0.095 0.109 0.120 0.134 0.156 0.188
Tube Bender Model Codes
3/4 S ABCD ABCD ABCD ABCD BCD BCD BCD BCD BCD BCD BCD BCD
SS BCD BCD BCD BCD BCD BCD BCD BCD BCD BCD BCD BCD
1S BCD BCD BCD BCD BCD BCD BCD BCD BCD BCD BCD BCD
SS BCD BCD BCD BCD BCD BCD BCD BCD BCD BCD CD CD
1-1/4 S BCD BCD BCD BCD BCD BCD CD CD CD CD CD CD
SS BCD BCD BCD BCD BCD CD CD CD CD CD C C
1-1/2 S BCD BCD BCD BCD BCD CD CD CD CD CD CD CD
SS BCD BCD CD CD CD CD CD CD CD CD C C
2S CD CD CD CD CD CD CD CD CD CD CD CD
SS CD CD CD CD CD CD CD CD CD CD — —
Table 2 – Tube Benders Maximum Capacity Guide * See page 3 for pipe bending capabilities

2Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
www.parker.com/tfd
Bulletin 4391-B26 Hydraulic Tube Bender
Mandrel Rods
Part No. — See table
Mandrel rods are for use with the HB632 Model Bender
and Exactol Models 412/424 benders. Mandrel rods
(as well as mandrel rod stop assembly) are required
when using mandrels. Overall mandrel rod lengths are
approximately eight feet. Mandrel rod diameters are
determined by tube I.D. (See Table 3.)
Mandrel Rod Stop Assembly
For use with Model HB632 Bender
The mandrel rod stop assembly holds and supports
the end of the mandrel rod in alignment with the tubing.
The rod stop assembly is bolted to the other end of
bender table. It keeps the mandrel and rod in align-
ment when mandrel bending. The stop screws can
be adjusted for correct length and positioning of the
mandrel in the tubing.
Description Part No.
Mandrel Rod Stop Assembly
(for Bender Model HB632)
631141
Universal Side Angle Indicator
Part No. 520520
Accurately determines the angle between tube bends
in different planes, and keeps out-of-plane angles
accurate when making repeated bends. Incorporates
a large, easy-to-read vernier dial. Maximum 3/4" O.D.
tubing can be used if the tubing must be extended
through the indicator. Maximum 1-1/2" O.D. tubing can
be used if the end of tube is held in the clamp jaw. Part No. 520520 – Universal
Side Angle Indicator
Part No. 631141 – HB632 Mandrels, Mandrel Rods and Rod Stop
Assembly
Bender Table – 520515
Heavy, all steel construction, strongly braced to
keep bender, mandrel rod and rod stop assembly
rigidly braced. Length 10 feet; weight 421 lbs.
900085 – Pump (std.)
974691 – High
Flow Pump
Standard Radius Blocks
660221 – Radius
Block Adapter Plate
Tie Bar
Slide
Blocks
Clamp
Blocks
Bender Parts and Accessories
Close Bend Radius Blocks
Part
No.
Mandrel
Rod Dia.
(in.)
Tube
I.D.
520506 1/4 0.283 – 0.362
520507 5/16 0.363 – 0.484
520508 13/32 0.485 – 1.489
Table 3 – Mandrel Rod Sizes

3Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
www.parker.com/tfd
Bulletin 4391-B26 Hydraulic Tube Bender
When using radius blocks 631057-112, 631060-128,
974330 and 974350, first install the radius block
adapter plate over the king pin, and then mount the
radius block upon it, as shown above.
Close bend radius blocks — These blocks have a
threaded pin which threads directly into both Triple-Lok
and Ferulok (Seal-Lok requires an adapter) tube fitting
nuts, permitting a first bend very close to the end of the
tube.
Inch Radius Block Chart
Size
Tube O.D.
AND10111 Standard MS33611 Standard Radius Block – Close Bend**
Part
No.
Radius* Part
No.
Radius* Part
No.
Radius*
in. mm in. mm in. mm in. mm
6 3/8 9.5 540502 1-1/4 31.8 590512-18 1-1/8 28.6 — — —
8 1/2 12.7 530763 1-1/4 31.8 590515-24 1-1/2 37.5 530597 1-1/4 31.8
10 5/8 15.9 530764 1-1/2 37.5 590518-30 1-7/8 47.6 530601 1-1/2 38.1
12 3/4 19.0 530765 1-3/4 43.8 590521-36 2-1/4 57.2 530605 1-3/4 44.5
14 7/8 22.2 530766 2 50.2 590523-42 2-5/8 66.7 530609 2 50.8
16 1 25.4 — — — 590524-48 3 76.2 530613 3 76.2
18 1-1/8 28.6 530768 3-1/2 88.9 590526-54 3-3/8 85.7 530617 3-1/2 88.9
20 1-1/4 31.8 — — — 590527-60 3-3/4 95.3 530621 3-3/4 95.2
24 1-1/2 38.2 530770 5 127.0 590530-72 4-1/2 114.3 530625 5 127.0
28 1-3/4 44.5 — — — 631057-112 7 177.8 — — —
32 2 50.8 — — — 631060-128 8 203.2 — — —
*Radius to tube centerline. **Note: Sizes 20 and 24 close bend radius blocks requires the removal of the clamp arm before installation.
Metric Radius Block Chart
Tube
O.D.
(mm)
Standard Radius Blocks Close Bend Radius Blocks***
Part
No.
Radius
(mm)
Part
No.
Radius
(mm)
10 810023 32 — —
12 780175 32 780185 32
14 780176 38 780186 38
15 780177 38 780187 38
16 780178 38 780188 38
18 780179 44 780189 44
20 780180 44 780190 44
22 780181 89 — —
25 780182 100 — —
30 780183 128 — —
32 780184 128 — —
35 974344 105 — —
38 530770 127 530625 127
38 590530-72 114.3 — —
42 974347 128 — —
50 974350 150 — —
***Note: Size 38mm close bend radius blocks requires removal of the clamp
arm before installation.
Accessories for Close Bend
Radius Blocks
Tube O.D.
(in.)
Threaded Pin
Part No.
Seal-Lok Adapter
Part No.
1/2 930420-8 930421-8
5/8 930420-10 930421-10
3/4 930420-12 930421-12
1930420-16 930421-16
1-1/4 930420-20 930421-20
1-1/2 930420-24 930421-24
Threaded Pins and Seal-Lok Adapters for Close Bend
Radius Blocks
Inch Pipe Size Radius Block Chart
Nominal
Pipe Size
(in.)
O.D.
(in.)
Part
No.
Bend
Radius
(in.)
Max.
Pipe
Schedule
3/8 0.675 974325 2-1/4 80
1/2 0.840 974326 2-5/8 160
3/4 1.050 974327 3-1/4 80
1 1.315 974328 4 80
1-1/4 1.660 974329 5 80
1-1/2 1.900 974330 6 40
Radius Blocks