Hold Down and Release Mechanisms for Space Applications: HDRM's, Pin Pushers, Pin Puller and other Space Mechanisms

Hold Down and Release Mechanisms for Space Applications: HDRM's, Pin Pushers, Pin Puller and other Space Mechanisms

High-Reliability, Non-Explosive (Split-Spool) Separation Nuts and Electromechanical Release Mechanisms for Dependable Stowage and Release of Deployable Space Systems

Hold Down and Release Mechanisms are electromechanical devices used in the deployment of satellites and other payloads in space. Supplied in various formats and measured-release preloads, the devices are optimized for foolproof release-reliability with built-in mechanical and electrical redundancy. In non-pyrotechnic HDRMs, the planned release of the deployable satellite/payload is activated by a pre-determined value of electrical current to a fuse-wire system which causes the wire to break under tension and allows a pre-loaded mechanical bolt to actuate.

Glenair's line of low-shock, redundant and non-redundant space mechanisms includes both HDRM devices as well as a family of pin pushers and pin pullers. Customer-defined housing and mounting configurations are available. Consult factory for specific device TR level and qualification test reports.

  • Pyrotechnic-free alternative for single event release of deployable space systems
  • User-serviceable and refurbishable units
  • Standard catalog as well as custom designs
  • Not susceptible to transient and noise (EMI / EMP / ESD / RFI) inputs
  • Extended temperature ranges: -150°C to +150°C

Reference

Datasheet

Space Mechanisms > Section A

061-002

061-002

Light-Duty Hold-Down Release Mechanisms
5 lb. (Delrin) or 20 lb. (Stainless Steel) release preload
Non-redundant circuit
061-003

061-003

Light-Duty Hold-Down Release Mechanisms
30 lb. (Stainless Steel) release preload Electrically Redundant
061-014

061-014

Light-Duty Hold-Down Release Mechanisms
75 lb. release Preload Non-Redundant Circuit • Side Load
061-005

061-005

Medium-duty Hold-Down Release Mechanism
2500 lb. release preload
Electrically redundant
061-006

061-006

Medium-Duty Hold-Down Release Mechanism
1000 lb. release preload
Electrically redundan
061-007

061-007

Medium-Duty Hold-Down Release Mechanism
300 lb. release preload
Electrically redundant
062-002

062-002

Heavy-Duty Hold-Down Release Mechanism
5000 lb. release preload
Electrically redundant
063-001

063-001

Heavy-Duty Hold-Down Release Mechanism
8750 lb. release preload
Electrically redundan
064-001

064-001

Heavy-Duty Hold-Down Release Mechanism
20,000 lb. release preload
Electrically redundant
061-010

061-010

Light-Duty Pin Pushers and Pullers
6 lb. push force
Non-redundant circuit
061-009

061-009

Light-Duty Pin Pushers and Pullers
18 lb. pull force
Non-redundant circuit
061-013

061-013

Medium-Duty Pin Pushers and Pullers
50 lb. pull force
Electrically redundant