Pyro Cutter | Guillotine | Reefing
When Milliseconds Matter™

Pyro Cutter | Guillotine Cutters | Reefing.

Pyro Cutters | Pyro Wire Cutter | Pyro Tube Cutter | Pyro Cable Cutter

PacSci EMC / Products / Pyro Cutter | Guillotine Cutters | Reefing


Bolt Cutter

Bolt Cutter

Bolt cutters in a myriad of sizes for a myriad of targets.

Cable Cutters

Cable Cutter

Small, medium and large cable cutters.

Cord Cutter

Kevlar, vectran, zylon. It makes no matter, none are a match for our cord cutters.

Strap Cutter

Strap Cutter

Reefing Line, Parachutes, Cargo Straps

Tube Cutter

Tube Cutter

Multiple targets, Target Combinations, Corrugated Steel Tubing (shown)

Wire Cutter

Wire Cutter

Cut hot wires with great precision. And safety.

Pyrotechnic cutters are used to sever a multitude of materials and cross-sectional shapes. Common targets used with ordnance cutting devices include: steel, electrical or fiber optic cables, aluminum, titanium, copper, kevlar, vectran, zylon, bolts, tubes and woven fiber cords/lines and straps.

A Pyro Cutter can be mechanically, electrically or laser initiated. After initiation, energetics drive a blade to forcibly slice the target material. Energetic loading, blade geometry, anvil geometry, and structural materials are all variable based on target and application requirements. Time from input of firing energy to completely severing the target material is on the order of several milliseconds for most applications.

Pyrotechnic cutters are used to sever steel, electrical or fiber optic cables, bolts, tubes and woven fiber cords/lines on a multitude of applications. Typical applications for pyro cutters are stage separation systems, staging parachute systems ( reefing lines ), opening electrical or fiber optic line circuits, releasing pre-loaded / folded assemblies ( i.e. wing, fin, etc.) and releasing cargo or munitions restrained by cords, flight termination systems (FTS) and balloon tethering.

We have designed and manufactured 100’s of different cutters for 100’s of applications. Qualified and used in various military, commercial, and aerospace platforms including spacecraft, launch vehicles, aircraft (military and commercial), satellites and multiple missile platforms.

Operating Temperature
-54°C to +71°C

Function Time
With the application of the All-Fire current, Cutter will completely sever the Target in 20 milliseconds maximum

10,000 feet underwater to Mars

Applicable Specifications
Qualified for:

  • MIL-DTL-23659
  • MIL-STD-1512
  • MIL-STD-1576
  • MIL-HDBK-83578

Target Materials
PacSci EMC has designed pyro cutters for the following targets:

  • Cables ranging from 1/16 to 1.0 inch diameter
  • High strength steel bolts and tubes up to ½ inch diameter
  • Woven fiber cords and straps ranging from 1/16 diameter to 2.0 inch wide


Geometric interface features and severing performance can be customized to meet customer application.


Hold Down Release Mechanism

In a nutshell, a Hold Down Release Mechanism (HDRM)  is used to keep spacecraft equipment in a stowed position during launch and, when in proper orbiting position, then releases the equipment upon an external command.

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Our Piston ActuatorsCuttersPin Pullers, Pushers, Thrusters and Retractors depend on the active stroke of an internal rod/piston to induce or control the motion that helps you achieve your mission-critical goal.

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We can design to meet your specific application needs.
Contact us at the link below, or for immediate assistance call 888.995.5089.

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