Hold-Down and Release Mechanisms (HDRMs)

Hold-Down and Release Mechanisms (HDRMs)

High-Reliability, Non-Explosive (split-spool) Separation Nuts and Electromechanical Release Mechanisms for Dependable Preload Stowage and Release of Deployable Satellites and Space Systems

Series 06 (North America)Series GSS (Europe)

Glenair HDRMs are optimized for foolproof near-simultaneous release reliability with built-in electrical redundancy. The planned release of deployable satellites and structures is activated by a pre-determined 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 mechanims includes both HDRM devices as well as a family of lightweight pin pullers. Customer-defined electrical initiation (with no amperage max limit), as well as custom housing, pin pusher designs, and mounting configurations are available. Consult factory for specific device TR level and qualification test reports.

Hold-Down and Release Mechanisms (HDRMs)

Pyrotechnic-free (low-shock with fuse-wire) for single-event release of deployable space systems—configurable electrical initiation with no (amperage) upper limit
Single-event device, user-serviceable and refurbishable
Redundant or non-redundant actuation circuit
Not susceptible to transient and noise (EMI/EMP/ESD/RFI) inputs
Extended temperature ranges: -150°C to +150°C

Reference

Space Mechanisms

Space Mechanisms

A Complete Ecosystem of Non-Pyrotechnic Split-Spool Separation Nut Mechanisms plus Blind-Mate Interconnects for Deployment of Satellite Systems and Structures

eBook
PDF (Single pages, print friendly)

Light-Duty HDRMs

061-014

Light-Duty HDRM, 061-014

Light-Duty HDRM
Side-load, Non-Redundant Circuit
24 lb Release Preload

Medium-Duty HDRMs

061-017

Medium-Duty HDRM, 061-017

Medium-Duty HDRM
Low-Profile, Non-Redundant Circuit
300 lb Release Preload

061-007

Medium-Duty HDRM, 061-007

Medium-Duty HDRM
Redundant Circuit
600 lb Release Preload

061-025

Medium-Duty HDRM, 061-025

Medium-Duty HDRM
Metric Thread, Redundant Circuit
600 lb Release Preload

061-037

Medium-Duty HDRM, 061-037

Medium-Duty HDRM
90° Bend, Redundant Circuit
600 lb Release Preload

061-033

Medium-Duty HDRM, 061-033

Medium-Duty HDRM
Harnessed, Redundant Circuit
600 lb Release Preload

061-006

Medium-Duty HDRM, 061-006

Medium-Duty HDRM
Redundant Circuit
1000 lb Release Preload

061-024

Medium-Duty HDRM, 061-024

Medium-Duty HDRM
Metric Thread, Redundant Circuit
1000 lb Release Preload

061-036

Medium-Duty HDRM, 061-036

Medium-Duty HDRM
90° Bend, Redundant Circuit
1000 lb Release Preload

061-029

Medium-Duty HDRM, 061-029

Medium-Duty HDRM
Connectorized, Redundant Circuit
1000 lb Release Preload

061-032

Medium-Duty HDRM, 061-032

Medium-Duty HDRM
Harnessed, Redundant Circuit
1000 lb Release Preload

061-005

Medium-Duty HDRM, 061-005

Medium-Duty HDRM
Redundant Circuit
2500 lb Release Preload

061-023

Medium-Duty HDRM, 061-023

Medium-Duty HDRM
Metric thread, Redundant Circuit
2500 lb Release Preload

061-035

Medium-Duty HDRM, 061-035

Medium-Duty HDRM
90° Bend, Redundant Circuit
2500 lb Release Preload

061-028

Medium-Duty HDRM, 061-028

Medium-Duty HDRM
Connectorized, Redundant Circuit
2500 lb Release Preload

061-031

Medium-Duty HDRM, 061-031

Medium-Duty HDRM
Harnessed, Redundant Circuit
2500 lb Release Preload

061-022

Medium-Duty HDRM, 061-022

Medium-Duty HDRM
Redundant Circuit
4000 lb Release Preload

061-034

Medium-Duty HDRM, 061-034

Medium-Duty HDRM
90° Bend, Redundant Circuit
4000 lb Release Preload

Heavy-Duty HDRMs

062-002

Heavy-Duty HDRM, 062-002

Heavy-Duty HDRM
Redundant Circuit
5000 lb Release Preload

062-004

Heavy-Duty HDRM, 062-004

Heavy-Duty HDRM
90° Bend, Redundant Circuit
5000 lb Release Preload

062-006

Heavy-Duty HDRM, 062-006

Heavy-Duty HDRM
Redundant Circuit
6500 lb Release Preload

063-001

Heavy-Duty HDRM, 063-001

Heavy-Duty HDRM
Redundant Circuit
8750 lb Release Preload

063-004

Heavy-Duty HDRM, 063-004

Heavy-Duty HDRM
Redundant Circuit
8750 lb Release Preload

064-001

Heavy-Duty HDRM, 064-001

Heavy-Duty HDRM
Redundant Circuit
12,500 lb Release Preload

069-401

Mechanical Release for use in place of Refurbishment Initiator, 069-401

Mechanical Release for use in place of Refurbishment Initiator

064-006

Heavy-Duty HDRM, 064-006

Heavy-Duty HDRM
Redundant Circuit
20,000 lb Release Preload

Medium-Duty Pin Puller

061-018

Medium-Duty Pin Puller, 061-018

Medium-Duty Pin Puller
Non-Redundant Circuit
16 lb Pull Force

061-013

Medium-Duty Pin Puller, 061-013

Medium-Duty Pin Puller
Redundant Circuit
50 lb Initial Pull Force

061-016

Medium-Duty Pin Puller, 061-016

Medium-Duty Pin Puller
Redundant Circuit
115 lb Pull Force

European-Made HDRM Solutions IAW ECSS-E-ST-33-01C Space Mechanism Standard

GSS500-000005

EU Series: GSS500-000005

EU Series
Medium-Duty HDRM
Redundant Circuit
1.5 kN Release Preload

GSS500-000016

EU Series: GSS500-000016

EU Series
Medium-Duty HDRM
Redundant Circuit
3 kN Release Preload

GSS500-000006

EU Series: GSS500-000006

EU Series
Medium-Duty HDRM
Redundant Circuit
6 kN Release Preload

GSS500-000001

EU Series: GSS500-000001

EU Series
Medium-Duty HDRM
Redundant Circuit
11 kN Release Preload

GSS500-000008

EU Series: GSS500-000008

EU Series
Medium-Duty HDRM
Redundant Circuit
12 kN Release Preload

GSS500-000003

EU Series: GSS500-000003

EU Series
Medium-Duty HDRM
Redundant Circuit
18 kN Release Preload

GSS500-000011

EU Series: GSS500-000011

EU Series
Medium-Duty HDRM
Redundant Circuit
24 kN Release Preload