AC Thruster Brakes | Spring-Applied, Electrohydraulic-Released Drum Brakes

  • MADE IN AMERICA – Meets BABA domestic content requirements
  • Designed to AIST Technical Report 11
  • Improved environmentally-sealed self-adjuster mechanism
  • Torque Range from 35 – 2,140 Lb-Ft
  • 6 to 19” drum sizes currently available
  • Lubrication-free bushings in all major pivot locations

hydrastop ac thruster

Overview

The HYDRASTOP is a Fail-Safe drum brake used to statically hold and/or dynamically stop a load for various industrial applications including cranes, conveyors and moveable bridges. Key markets include Iron & Steel, Infrastructure, Mining, Material Handling and Energy.

Design & Function

A self-contained, electrohydraulic thruster device is supplied with a 3-Phase/460VAC/60Hz power supply. The internal impeller construction and motor are both bi-directional, so the power connection is not critical. When supplied with power, an internal motor spins the connected impeller to produce pressure in the piston chamber. This pressure then pushes on the face of the piston which then moves the connected piston rod out, extending the rod to its designed maximum stroke.

Thruster Off = Brake Set | Thruster On = Brake Released

The thruster will stay in the extended state until power is removed. When power is removed, an external or internal spring returns the piston and rod to its retracted position. This design implies a fail-safe principal were, in the case of power loss, the brake sets – preventing uncontrolled movement.

Technical Specifications

Coming Soon

Features

  • HEAVY DUTY, LIGHT-WEIGHT HOUSINGS – Cast aluminum housings are IP66 rated and anodized for corrosion protection
  • SUPERIOR HEAT DISSIPATION – Finned housings allow for radiant heat transfer
  • INTERNAL BI-DIRECTIONAL BYPASS PISTON DESIGN – Bypass labyrinth seal eliminates internal wear components compared to conventional thruster designs resulting in smooth, precise piston travel and long service life
  • FLOW CONTROL VALVES – Internal check valves control the flow rate between each housing allowing for a wide range of lifting and lowering times
  • INTERNAL WET MOTOR DESIGN
  • CERTIFICATIONS – cMET/MET, IP66 pending

 

Options & Accessories

  • Auto-Adjuster Mechanism
  • Thruster Heater (<0° ambient)
  • Flow Controls – Lifting/Lowering valves
  • Corrosion Protection – Stainless hardware & Steel-It® epoxy paint
  • Piston Rod Dust Boot
  • Internal C-Spring
  • Limit Switches (for Brake-Released, Brake-Engaged & Manually-Released)
  • NEMA 3R & 4X Brake Enclosures
  • Manual Hand Release
  • Brake Wheels

BABA Compliant – Adhering to U.S. Federal Procurement Regulations        BABAA compliant

The HYDRASTOP® product series meets the compliance standards set forth by the Build America, Buy American Act (BABA) and is fully compliant with applicable provisions in the Code of Federal Regulations (CFR), including Title 49, Part 661 for transportation infrastructure.

Buy American vs Buy America:

  • Buy American Act (BAA) aims to encourage government spending for American-made products. Applies to direct federal procurement of goods, as outlined in 41 U.S.C. 10a-d and FAR 25.1 and is not only limited to infrastructure projects.

  • Build America, Buy America (BABA) governs transportation and infrastructure projects funded by federal funds, aligning with 49 U.S.C. 50101. Applies to federal financial assistance in infrastructure projects, which are broadly defined to include “construction, alteration, maintenance or repair of infrastructure in the United States.” (IIJA, PL 117-58, November 15, 2021, 135 Stat 429, Sec. 70912(7).) For purposes of BABA, infrastructure includes, but is not limited to, the structures, facilities, and equipment for: roads, highways and bridges; public transportation; dams, ports, harbors and other maritime facilities; intercity passenger and freight railroads; freight and intermodal facilities; airports; water systems, including drinking water and wastewater systems; electrical transmission facilities and systems, including structures, facilities and equipment that generate, transport and distribute energy, including electric vehicle (EV) charging; utilities; broadband infrastructure; and buildings and real property.

Force Control ensures the Hydrastop® brakes series complies with both statutes and contributes to American manufacturing. For a copy of Force Control’s BABA self-certification, please contact in**@**********ol.com.