Hydraulic Ram Arrest Systems

Hydraulic Safety Restraint Cylinder / Manifold System:
Model #: HRA-1000-AP (Allsteel & Piranha Brakes)


Hydraulic Safety Restraint Cylinder/Manifold System Description:
The HRA-1000-AP was designed and developed for the purpose of bringing hydraulic presses equipped with one (1) cylinder to the CSA-Z142-02 and ANSI standards for mechanical and hydraulic presses. It incorporates a custom designed manifold that is attached to a hydraulic cylinder and is equipped with two (2) monitored safety valves that can lock and prevent the initiation of the press as well as the free fall of the ram should the main cylinder fail. One manifold assembly is potentially needed per side.

Detailed Features

  • Incorporates valving required to safely support the Press Brake platen.
  • Complies to the Canadian Z142-02 code for Power Press Operation for hydraulic presses and US ANSI/OSHA B11.2-1995(R2000)
  • All ports will be SAE O-ring ports, no NPT ports on manifold or cylinder.
  • Attaches directly to the hydraulic restraint cylinder's ports.
  • Two (2) HRA-1000-AP assemblies are required per Press Brake.
  • The HRA-1000-AP assembly is static and dynamically tested prior to installation.
  • Smaller single cylinder utility presses can be retrofitted with one HRD-1000-AP

    Included in the package per side:
    (1) High strength aluminum manifold block
    (2) Electric monitored directional safety lock valve, 4-way, 2-position, D03
    (1) Ventable counterbalance screw-in cartridge valve with bypass check valve
    (1) Direct operated safety relief valve screw-in cartridge
    (1) Check valve screw-in cartridge with 4 PSI spring
    (1) Check valve screw-in cartridge with 100 PSI spring
    (5) Pressure monitoring test connections throughout manifold
    (AR) 24 VDC solenoids
    (AR) SAE flare fittings in ports D, T & V
    (1) Hydraulic cylinder, 2.0" bore x 1" rod, SAE #10 straight thread ports, cap end clevis mount
    (1) Cylinder stroke to be in excess of press stroke
    (1) Base clevis mounting bracket
    (1) Clevis pin
    (1) Rod alignment coupler, 3/4" - 16 UNF
    (1) Rod end mounting block
    (1) Manifold support bracket
    (1) Universal mounting bracket with Grade 8 SHCS fasteners
    (AR) Hydraulic fittings to attach manifold to cylinder

The Hydraulic Safety Restraint Cylinder/Manifold (HRA-1000-AP) is an engineered product, designed to work in conjunction with the BrakeMizer BMZ-1000-HRA or it can be controlled by a safety PLC.

Key Benefits:

  • Self-contained manifolds with direct coupled cylinders.
  • The manifold is independent of the press.
  • Easy installation means minimized down-time and no extensive piping required.
  • Meets or exceeds the Z142-02 and Z432 04 requirements for ram arrest on a hydraulic press.
  • Restrains ram under stop and fault conditions.
  • Fewer manifolds used than competive systems.
  • Non-invasive installation.
  • Installs within one (1) day on most presses (not including installation of controls).
  • A minimal amount of hosing required for connection.
  • Minimized leak potential.
  • Systems can be easily removed and transferred should asset be sold.
  • Systems are factory pre-set and require no on-site calibrations.
  • Built-in control for ram drop prevention during upstroke via check valve.

Hydraulic Safety / Manifold System: HRA-1000

Suitable for Dual Cylinder Down-Acting and single or multiple cylinder up-acting Brakes.

Detailed Features

  • Incorporates valving required to safely support the Press Brake platen.
  • Complies to the Canadian Z142-02 code for Power Press Operation for hydraulic presses and US ANSI/OSHA B11.2-1995(R2000).
  • Attaches directly into the existing hydraulic system.
  • One (1) or Two (2) assemblies are required depending upon the machine's design.
  • The HRA-1000 assembly is static and dynamically tested prior to shipping.

Included in the package per side: (Inclusions will vary according to needs of specific presses)

(1) High strength aluminum manifold block
(2) Electric monitored directional safety lock valve, 4-way, 2-position, D03
(AR) 24 VDC solenoids
(AR) SAE flare fittings in ports D, T & V
(1) Manifold support bracket

The Hydraulic Safety Restraint Cylinder/Manifold (HRA-1000) is an engineered product, designed to work in conjunction with the BrakeMizer BMZ-1000-HRA or it can be controlled by a safety PLC.

Key Benefits:

  • Self-contained manifolds.
  • The manifold is independent of the press.
  • Easy installation means minimized down-time and no extensive piping required.
  • Meets or exceeds the Z142-02 and Z432 04 requirements for ram arrest on a hydraulic press.
  • Non-invasive installation.
  • A minimal amount of hosing required for connection.
  • Minimized leak potential.
  • Systems can be easily removed and transferred should asset be sold.
  • Systems are factory pre-set and require no on-site calibrations.