YUKEN CJ Series Compact Double-acting Fast Response&Precise Clamping Force Hydraulic Cylinders
Example Models:
- CJ-40-20-FA-NBR
- CJ-40-75-FB-NBR
- CJ-40-50-SD-NBR
- CJ-50-30-FA-NBR
- CJ-50-100-FB-NBR
- CJ-50-75-SD-NBR
- CJ-63-50-FA-NBR
- CJ-63-100-FB-NBR
- CJ-63-75-SD-NBR
YUKEN CJ Series Compact Thin Hydraulic Cylinders
Product Introduction
CJ Series is YUKEN ultra-short thin-type double-acting clamping hydraulic cylinders, specially designed for narrow-space fixture clamping. With extremely compact overall length, high rigidity, fast response and precise clamping force, it is widely used in CNC machine tools, mold fixtures, automated tool clamping and limited-space hydraulic clamping systems. Compliant with JIS standard, stable and durable for high-frequency reciprocating clamping operations.
Example Models:
- CJ-40-20-FA-NBR
- CJ-40-75-FB-NBR
- CJ-40-50-SD-NBR
- CJ-50-30-FA-NBR
- CJ-50-100-FB-NBR
- CJ-50-75-SD-NBR
- CJ-63-50-FA-NBR
- CJ-63-100-FB-NBR
- CJ-63-75-SD-NBR
A: Depends on the style of tie-rod. We would like to cast and forge once the quantity above 100 pcs.
A: Well, it depends on the quantity and style of hydrualic cylinders, at least 60 days if we make casting and forging, at least 35 days by maching.
A: Sure, we are the manufacutuer and trading of hydraulic cylinder.
A: Double-Acting-have a port at each end, supplied with hydraulic fluid for both the retraction and extension. Single-Acting-hydraulic fluid enters through
a port at one end of the cylinder, which extends the rod by means of area difference. An external force or gravity returns the piston rod.
A: Sure. Show us the drawing, we will quote for you soonest.
A: Yes, we make and supply a wide rang of hydrualic cylinders as a proffetional manufacture, there are only some kinds of them show on the website. Freely contact us to get more information.

Key Features
- Ultra-thin short structure: Minimal overall length, perfectly fits narrow fixture gaps and compact equipment layout
- High clamping rigidity & fast action: Rapid extension/retraction, high repeat clamping precision
- Integrated non-tie-rod design: High structural strength, resistant to frequent clamping impact
- Simple embedded flange installation: Easy assembly, no extra mounting bracket required
- Anti-side-load piston rod: Stable clamping under eccentric fixture force, long service life
- Low leakage reliable sealing group: Stable long-term high-frequency clamping operation
- Fully matched with YUKEN hydraulic clamping circuits, convenient system integration
Typical Applications
- CNC machine tool precision workholding fixtures
- Mold rapid clamping & positioning mechanisms
- Automatic machining center tool clamping units
- Narrow-space automated clamping equipment
- Stamping & processing fixture fast pressing systems
