Logic cartridge insert

Bosch Rexroth LC32A40E7X/ logic cartridge insert

Model: LC32A40E7X/ · Bosch Rexroth
Spring cracking pressure class (bar)4
Reference poppet stroke (mm)14
Seal materialNBR

Description

Bosch Rexroth LC32A40E7X/ is a size 32 two-way logic cartridge insert, factory article R900909662, for an ISO 7368 manifold cavity. This individual insert requires a suitable control cover and pilot circuit selected separately. Its nominal seat-to-annulus area ratio is 2:1; pilot pressure and the closing spring act against pressure forces at ports A and B.

The A40 spring is the approximately 4 bar cracking-pressure class, not a required pilot pressure or a system pressure setting. The poppet has no damping nose. The standard execution uses NBR seals. Required opening pressure depends on the operating pressure and force balance.

Engineering dimensions and reference areas use the manufacturer’s March 2005 series document. The complete circuit pressure limit depends on the manifold, cover and attached pilot valve; no assembled-system rating or supplied setting is inferred. The manufacturer photograph is representative of an LC25 insert and does not identify every spring or poppet execution.

Full specifications

Technical specifications
Product type Logic cartridge insert
Spring cracking pressure class (bar) 4
Cavity standard ISO 7368
Component series 7X
Factory model code LC32A40E7X/
Manufacturer Bosch Rexroth
Manufacturer part number R900909662
Nominal annulus area (%) 50
Nominal area ratio 2:1
Nominal pilot area (%) 150
Poppet damping Without damping nose
Reference annulus area a2 (mm²) 339
Reference pilot area a3 (mm²) 1018
Reference poppet stroke (mm) 14
Reference seat area a1 (mm²) 679
Nominal size 32
Technical specifications
Seal material NBR