OBL-Series
Hydraulic Press

Description:
Lower cost alternative to a hydraulic straightside press…dual cylinder, 6-way gib guided design…application versatility, including blanking speeds rivaling mechanical models…standard sizes from 200 to 1000 tons, 6' to 12' bolster sizes (larger designs optionally available)

Applicable markets:
All OEM and contract stamping markets performing draw work, forming and/or blanking work on a single press

Key Features:

  • Straightside press affordability
  • Wide range of applications
  • Rigid, interlocked construction
  • Industry's most advanced and dependable hydraulic system…designed and built by Pacific
  • Working speeds rivaling (sometimes exceeding) comparable mechanical designs
  • Total power/controllability throughout the stroke (compare to mechanical designs)
  • Six-way gibbing ensures smooth, non-binding, precision bolster movement ... at an affordable price
  • Numerous optional features

OBL-Series Testimonials

OBM/OBL Series Brochure
Pacific "All Products" Brochure

 

OBL-Series Hydraulic Presses

(Dual Cylinder, Open Back Long Press)
- A True Pressroom
Performer...Speed, Job
Versatility, Proven ROI

 Pacific Press Technologies

OBL Series Hydraulic Press for Blanking Operations from Pacific Press TechnologiesHigh Speed Blanking Performance On A Straightside Press? (…And Traditional Hydraulic Pressworking, too?)

The OBL-Series Hydraulic Straightside Press has become the industry standard in dual cylinder down-acting metal forming equipment designs. Why? It allows you to perform draw work, embossing, coining, even blanking/punching work ... all on a single press. And, OBL does so at an affordable price (OBM and OBL represent our economical alternative to straightside hydraulic presses).

Its affordable, yet productive performance offers numerous design features: six-point, non-metallic adjustable gibbing; spherical piston/die connection with active hydraulic leveling, heavy plate steel side housings; generous bed sizes and open heights; liberal feed windows to facilitate coil feeding; and full tonnage supplied throughout the stroke-giving you high speed performance, job versatility and precision tool alignment. And when the die size exceeds a single cylinder press, OBL can provide maximized stability from left to right off-center loading.

Choose from 200 to 1000 ton standard models, bed lengths ranging from 6' to 12'-longer designs available optionally (see specification chart below).

Check out our other 6-way gibbed model, the OBM-Series for single cylinder, smaller die/part applications. Or for high-precision, four column, 8-way gib models, take a look at our D-Series (dual cylinder) and M-Series (mono-cylinder) models.

Contact us about our OBL-Series Hydraulic Presses.

Standard Features:

Consider these key machine features/user benefits…

  • Rugged Construction: Its interlocked frame design transfers press loads directly to parent metals (versus bolts or welds). Generous window openings allow for easy access to the die area and permits continuous coil feeding operations. The 6-point square-type gibbing assures maximum bearing contact with long non-metallic gib surfaces-with tight gib clearance and accurate slide alignment helping to extend overall tool life and performance. Off-center loading issues are addressed due to precision slide parallelism and active hydraulic leveling.
  • State-Of-The-Art Hydraulic System: Each press is equipped with a compact, high-speed hydraulic system enabling fast cycle speeds that can equal or surpass those of mechanical presses of comparable size. Safe and reliable press slide control is found in the Pacific-built modular "stack" cartridge valve design (quick response, minimized heat build up, reduced piping and fitting requirements, improvements in safety and maintenance requirements). The power unit provides three advance speeds (rapid advance, fast press, normal press) and two return speeds. Additionally, its large double acting cylinders provide support to cushion the break-though shock of heavy material punching with resulting improvements in punch and die life and work quality.
  • Superior Controllability: Gain increased levels of production, versatility and safety. Unlike mechanical presses, full rated tonnage and generous open heights deliver power throughout a long stroke. The OBL-Series offers a Pendant mounted, PLC Interface control (Allen Bradley 600 Panel View with color screen, Allen Bradley SLC 500 Series PLC) to provide minimum set-up time and maximum flexibility. Tonnage is programmed directly through the control.

Optional Features:

  • Full PC-based Human Machine Interface (HMI)
  • Higher Speed Hydraulic Packages
  • Rugged Construction, State-Of-The-Art Hydraulic System, Superior Controllability
    Increased Stroke Lengths
  • Increased Open Heights
  • Increased Feed Window Sizes
  • Quick Die Change Systems
  • Die Cushions
  • Hydraulic Knock-outs
  • Coil Feeding/Handling Systems
  • Larger Bed/Bolsters
  • Specially Machined Bolsters and Slides
  • Additional Operator Stations
  • Continuous Run Operation
  • Flush Floor Mounting
  • Safety Enhancing Optional Features (light curtains, barrier guards, two hand controls, slide safety blocks)
  • Slide Locks

OBL Specification Chart:

Model
OBL
OBL
OBL
OBL
OBL
OBL
Tonnage
200
300
400
500
750
1000
Stroke
12
12
12
12
12
12
Open Height
20
20
20
20
20
20
Closed Height
8
8
8
8
8
8
Distance Between
Housing
81-153
81-153
81-153
81-153
108-156
108-156
Machine Height
143
143
144
148
186
204
Machine Width
105 - 177
105 - 177
107 - 179
109 - 181
136 - 186
142 - 190
Machine Depth
88
88
88
88
117
117
Housing Projection Below Floor
>8'
>8'
>8'
>8'
Y
Y
Slide Bolster Size
(L to R x F to B-range)
36 x 72-
144
36 x 72-
144
36 x 72-
144
36 x 72-
144
48 x 96-
144
48 x 96-
144
Bed Bolster Size
(L to R x F to B-range)
36 x 78-
150
36 x 78-
150
36 x 78-
150
36 x 78-
150
48 x 102-
150
48 x 102-
150
Bed Height Above
Floor
41
41
41
41
41
41

All specifications in "inches" unless otherwise marked

OBL Speeds Chart:
Model
Tonnage
Speed Package
Rapid Advance
Fast
Press
Fast Press
Tonnage
Normal
Press
Normal
Return
Fast
Return
Motor
HP
OBL
200
LEVEL 1
362
171
30
53
107
340
40
LEVEL 2
498
235
30
77
156
467
60
OBL
300
LEVEL 1
362
134
80
41
70
221
40
LEVEL 2
498
184
80
60
101
303
60
OBL
400
LEVEL 1
352
131
100
39
64
216
50
LEVEL 2
468
174
100
63
106
287
100
OBL
500
LEVEL 1
319
107
130
35
56
169
60
LEVEL 2
437
148
130
61
97
231
100
OBL
750
LEVEL 1
257
100
250
38
66
172
100
LEVEL 2
316
123
250
61
105
211
150
OBL
1000
LEVEL 1
230
87
350
42
72
144
150
LEVEL 2
302
115
350
42
72
189
2X75

All specifications in "inches per minute" unless otherwise marked

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