Product Summary | Key Features | Hydra Mechanical Design
Controls | Construction Features | Specifications

Product Summary

Designed for Precision Sheet Metal Fabricating
Repeat Accuracy of .001 overall

Standard-model HM-04500 Series - from 6'x 12 gauge through 14' x 14 gauge.
Standard Model HM-07000 Series - from 6' x 10 gauge through 16' x 16 gauge.

Custom orders available on all HM-Series. With 2 to 6 AXIS CNC controls!

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Key Features

Standard Equipment
Complete electric system with starter and disconnect, Wired 230/460/575 volts
Complete hydraulic system to JIC standards
Precision ground die holder and adjusting screws
Precision digital reading stroke control - .0001"
Comprehensive instruction manual & parts book

Design Features
Unique "leveling" mechanism to control precision parallelism of tooling
Non-metallic slide surfaces with zero clearance
Precision ground self aligning spherical bearings on cylinder mountings and "Lev Link" system
No torsional forces in the frame
Provision for connecting safety light curtain
Provision for connecting multi axis controls
All steel welded and bolted construction
Deep section beams for maximum rigidity
True center line loading through frame and "Lev Link"
Two JIC hydraulic cylinders with hard chrome rods and poly pak seals

Service Features
All hydraulic fittings are "O" ring or JIC-37 Flair -- no pipe threads
All circuits and solenoids independently fused
All the electric wiring is consistently color-coded and terminals numbered
All commercial components are suppliers-standard unmodified shelf parts
Bolted on table and ram are removable for future remachining
Oil level and temperature gauge is standard

Control Features
Precision digital reading stroke control setting to .0001"
Fully adjustable high speed control
Three-speed cycle -- fast/slow down -- fast up
Lockable mode selector -- "inching"/"off"/"single cycle"
Lockable "hand-foot" selector for foot switch or two hand button control
Convenient tilt adjustment
Complete hydraulic and electric over load protection
Tonnage control and indicator
"Inch Up" control button
Foot switch with anti-trip latch
Precision ground die holder with alignment adjusters
Automatic compensation for side frame stretch

Optional Equipment
CNC bend angle and back gauge control systems (2 to 6 AXIS) with graphics
Power operated back gauge with digital read-out
Programmable power back gauge (DELEM DAC-250)
Automatic lubrication system
Increased throat gap
Increased die space
Horn extension for bed and ram
Provision for Tandem operation
Machine for angle brackets
Permanently flanged bed and ram
Pendant or pedestal control stations
Tandem foot switch controls
Increased cycle speeds
Flush floor bed style where feasible
Digital reading tilt adjustment
Foot switch inch up button

High Speed Options
The standard speeds will provide bending cycles at approximately 1000 per hour in normal set up.
Safety Reminder: The stopping distance for this RAM is relative to its speed and as speeds increase so does its stopping distance. This can create a disadvantage when setting point of operation guards.

Optional Speeds
Option 1 - 45 Ton 140/30/230 10 horsepower
Option 1 - 70 Ton 135/25/200 10 horsepower
Option 2 - 45 Ton 140/40/230 15 horsepower
Option 2 - 70 Ton 135/35/200 15 horsepower

Point of Operation Guarding
The machine must not be operated without point of operation guarding. It is the responsibility of the user to insure the machine is operated safely and has appropriate guards for the type of work being performed. The manufacturer can not satisfy the guarding requirements for the many and varied applications these machines can perform. The manufacturer will assist the purchaser with his selection of guarding and will offer factory installation of the guarding selected by the purchaser.

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Hydrapower Hydra Mechanical Design

Twin Toggle Link Mechanism (patents applied for)
Unique advantages:

All other Hydra mechanical linkage designs, torque tube designs and mechanical crankshaft designs transmit the bending tonnage through their bearings every stroke, regardless of whether the work is "off center" or not. The hydrapower twin toggle link does not suffer any load or wear during normal bending and only transmits forces when there is a substantial "off center" load.

Comparisons

• Torque Tube and Rear Mounted Cylinder Designs. These transmit load through all their bearings every stroke and with "Off Center" loads they generate torsional forces in the frame. With a large "Off Center" load they will twist and lift a foot off the floor.
• Horizontal Cylinders and Double Crank Design. These also transmit load through all their bearings every stroke unless it is offset to the end with the input link. Their horizontal cylinder has longer stroke and by running in a horizontal condition means the Piston and Rod wears on the bottom services, the vertical cylinders do not.
• Crankshaft Design. These also transmit load through their bearings every stroke but stroke lengths are usually a limitation as are stroke control and tonnage control options.

Center Line Loading
The Hydrapower Hydra Mechanical has true "Center Line Loading" with the cylinder input forces on the side frame center lines and tooling center line. In addition, all the linkage forces all are on the tooling center line and only in the vertical plane.

No horizontal or misdirected forces exist because the two side frame mounted cylinders are not attached to the mechanism. Their force goes directly into the RAM vertically on the tooling center line and the side frame center line.

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Controls

• High Speed Control Rod can be readily raised or lowered to provide high speed in the approach and return directions.
• Top of Stroke Cam adjusts up and down the bar to allow swift changes in open height.
  Tonnage Control Indicator provides adjustment of tonnage capacity to protect tooling against overload.
• Bottom of Stroke Digital Read-Out adjusts shut height for precise control of bend angle. Bottom of stroke is referenced to the dies and provides constant position regardless of tonnage changes.
• Extra Long Slides
  To ensure longer life and greater accuracy the machines are equipped with very long slides. When the housings are being machined for the slides, a reference level surface is also machined at the same time to enable the slides to be accurately realigned when the press brake is being installed. The slides require no lubrication and run with zero clearance to insure front to back precision within .001".

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Construction Features

The frame and all attachments are fabricated from high-quality steel to produce a virtually indestructible assembly.

The hydraulic cylinders are connected to the RAM with hardened, self aligning, spherical thrust bearings which provide exceptionally long service without the need for lubrication. Deflections and overloads in the frame and housing have no effect on cylinder and slide alignment.

The hydraulic system involves less valves than most other press brakes and reflects the simplicity and convenience of service which we design into the machine.

The electric system is supplied to UL and CSA requirements and it is designed for ease of service. A weather-proof panel contains operating push buttons, switches and motor starters. A safety disconnect is interlocked in the panel door.

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