M2 Crimpers

Models RVS, RVD, RVJ, RVSS

The Blockwise type M2 radial compression stations are simple, low-cost crimpers with no electronics, suitable for a wide variety of applications in medical device manufacturing, R&D labs, and catheter labs
  • Sized for Heart Valves
  • Easily Disassemblable
  • Variety of Actuation Types
  • Simple, no Electronics


These crimpers are sized appropriately for typical prosthetic heart valves, and designed to be easily disassembled for cleaning. Compared with more expensive Blockwise crimpers, type M2 is shorter in length, slightly less powerful, and slightly less accurate at small diameters. All type “M2” compression stations have 9 dies made from POM acetal copolymer. The design is type of Zero-G™ mechanism, with essentially zero die-to-die gap.


Required Installation Connections – Model RVJ

Description Physical Specs Functional Specs
Electric Power Not Required
Compressed Air Actuates the Compression Mechanism (see Knowledge Base: Compressed Air & High Pressure Gas Connections) Instant Tube Fitting Accepts ¼-inch OD Plastic Tube Regulated to 6.8 to 8.5 bar (105 to 125 psi)

Model RVS - Hand Crank Actuation

Hand crank to change the diameter. Maintains diameter when crank is released. Simple closed-stop adjusting screw.

Diameter Length Max Radial Force Die Material
0-41 mm 25 or 50 mm 600 N POM Acetal Copolymer

Model RVD - Air Cylinder Mounted

Air actuated, customer supplies the compressed air controls. For example, pressure regulator, gauge, control valve, and speed-limiting orifices to control the compressed air. Simple closed-stop adjusting screw.

Diameter Length Max Radial Force Die Material
0-41 mm 25 or 50 mm 600 N POM Acetal Copolymer

Model RVJ - Air Actuation with Controls

Air actuated, includes open/close toggle valve, pressure regulator, and gauge. Simple closed-stop adjusting screw.

Diameter Length Max Radial Force Die Material
0-41 mm 25 or 50 mm 600 N POM Acetal Copolymer

Model RVSS - Hand Crank Steam Sterilizable

Similar to model RVS, made from polysulfone for resistance to steam sterilization

Diameter Length Max Radial Force Die Material
0-41 mm 25 or 50 mm 600 N POM Acetal Copolymer