Bulldozer Press Description

Pacific’s Straight Side Hydraulic Presses employ either a single or double cylinder six-point, non-metallic adjustable gibbing, with flange mounted piston and slide connections. All hydraulic presses are heavy plate steel and/or column construction, have large bed areas and generous open heights, and provide full tonnage throughout the stroke (up to 2000 tons), providing multiple job versatility and precision tool alignment.

Bulldozer Press Applications

 

Bull Dozer Press Applications: Breaking up anodes or castings.
Breaking up anodes or castings

Bull Dozer Press Applications: Bending and straightening structural sections, I-beams, and channels.
Bending and straightening structural sections, I-beams, and channels

Bull Dozer Press Applications: Bending and straightening plate.
Bending and straightening plate

Bull Dozer Press Applications: Punching, piercing, slotting, and notching.
Punching, piercing, slotting, and notching

Bull Dozer Press Applications: Cutting off heavy angle stock.
Cutting off heavy angle stock

Bull Dozer Press Applications: Straightening shafts and bars.
Straightening shafts and bars

Bull Dozer Press Applications: Drawing, forming, or corrugating flat stock.
Drawing, forming, or corrugating flat stock

Bull Dozer Press Applications: Straightening rail.
Straightening rail

Bull Dozer Press Applications: Forming heavy steel rings from flat bar stock.
Forming heavy steel rings from flat bar stock

Bull Dozer Press Applications: Bending tube and pipe
Bending tube and pipe

 

Bulldozer Brochure

Pacific "All Products"
Brochure

Hydraulic Bulldozer Presses

Its low silhouette design paves the way for larger bending applications


The tool for bending long and/or heavy structural shapes Specific applications demand specialized machine tools…especially true in the world of long part and/or heavy plate fabrication work. Pacific's Hydraulic Bulldozer design has been a heavy industry mainstay…in product design…in heavy tonnage performance…in overall productivity. But what else would you expect from North America's hydraulic bending technology leader for more than fifty years? A low-silhouette design makes it easy to move and position large parts over the press. Long, full power throughout the stroke can be adjusted to meet your application's tonnage and pressing speeds. Choose from 100-500 ton standard models (seven different standard sizes). In addition to the Bulldozer, check out our Ramdozer.

Hydraulic Bulldozer Press Standard Features:

Consider these key machine features/user benefits…

  • Rugged Construction: Rolled plate construction is rigid and trouble-free. Heavy cast iron gibbing and hardened steel slideways assure rigidity and proper alignment. End lug is designed with a heavy metal interlock to absorb and better distribute loads throughout the frame. Die is easily mountable to the end lug because T-slots are machined longitudinally in the cross head.
  • State-Of-The-Art Hydraulic System: Precision, high-speed performance and dependability all start with Pacific-built heavy-duty stacked valve system. Built-in hydraulic overload protection protects against overload and jamming. Single piece cast cylinders and cast piston/rod assembly eliminate high stresses, oil leakage and delivers trouble-free operation.
  • Superior Controllability: Gain increased levels of production, versatility and safety. Enjoy full-rated tonnage throughout the long stroke. Mode selector switch for ram inching control, two speed approach (rapid advance and normal press) or single speed approach (normal press) makes set up fast and easy. Fully-adjustable depth stop/back travel stop provides for instant change of ram open/closed dimensions. End lug operates from three different positions. Moveable foot switch enables "at-the-work eye-sighting" for straightening or bending operations.
  • Laser Bend Alignment: Two laser line generators — one at each end of the tandem system - project a visible line at the centerline of the installed tooling. A blank with the bend lines marked is moved into the press brake until the mark and the visible laser line are aligned and the press brake is cycled to accurately complete the bend. An optional center mount (removable) laser line generator is available when a single press brake of the tandem system is to be used.


Contact us about our Bulldozer Presses.

Optional Features:

  • Bend pin (for ring or contour work)
  • Extra long stroke
  • Tonnage control (to regulate tonnage from 20-100%)
  • Infinitely variable pressing speed at any point in advance stroke
  • Higher speed power units
  • Self-contained tooling
  • Holding circuit (for heated platen/bonding work)
  • Straightening blocks (for forward or reverse bending without work rotation)


Bulldozer Specifications
Tonnage 100 150 200 250 300 375 500
Stroke 24 24 24 24 30 30 30
Open Distance (Three end lug positions) 30-
42-54 		30-
42-54 		36-
48-60 		36-
48-60 		36-
54-72 		36-
54-72 		36-
54-72
Machine Height 48 49 50 54 56 59 63
Machine Width 60 60 60 60 72 72 72
Machine Length 153 155 158 167 203 210 228
Housing Projection Below Floor 0 0 0 0 5 11 19
Bed Height Above Floor 32 32 32 32 32 32 32
Bed Width 46 46 46 46 46 46 46
Bed Length 116 119 128 136 165 172 189
Crosshead and End (Top to Bottom x L to R) 14 x 16 16 x 60 18 x 60 20 x 60 22 x 72 26 x 72 30 x 72
Approx. Shipping Weight (LBS) 14,000 18,000 21,000 25,000 34,000 41,000 52,000

All specifications in "inches" unless otherwise marked

Bulldozer Speed Chart:

 

Model

Tonnage

Speed Package

Rapid Advance

Normal Press

Normal Return

Motor Horsepower
BD 100 LEVEL 1 144 66 132 25
LEVEL 2 192 84 180 30
BD 150 LEVEL 1 120 55 126 30
LEVEL 2 168 72 162 40
BD 200 LEVEL 1 96 43 90 30
LEVEL 2 120 54 120 40
BD 250 LEVEL 1 72 34 78 30
LEVEL 2 108 48 120 50
BD 300 LEVEL 1 78 36 72 40
LEVEL 2 96 45 90 50
BD 375 LEVEL 1 55 31 84 40
LEVEL 2 66 36 96 50
BD 500 LEVEL 1 57 28 60 50
LEVEL 2 Consult Factory

All specifications in "inches per minute" unless otherwise marked