
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X25-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 25mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 5–25mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X25-20S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion at both ends. It delivers 402 N of push force at 0.5 MPa through a 32 mm bore. The 20 mm adjustment code lets you trim the rear travel, creating a usable stroke window of 5 to 25 mm for precise positioning tasks.
Unlike the fixed rubber bumper on an MBLJ, this model uses screw-tunable deceleration to protect the end covers during faster moves. The rear stopper sets the travel end but does not lock the load; a separate external guide is recommended to prevent side-load bending on the Ø12 mm rod. The -S code equips a built-in magnet for CMSG reed or DMSG/EMSG solid-state sensors.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X25-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 25 mm |
| Adjustable window | 5–25 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 32 | Bore size in mm. |
| ×25 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Sets a 5-25 mm micro-adjustable travel window for drill heads in PCB prototyping, using the 402 N force to drive the bit while the air cushion prevents cover damage on fast retracts.
Tunes the end-of-stroke deceleration for adhesive dispenser valves, ensuring the 346 N pull retracts the nozzle cleanly without sudden shocks that would break the fluid seal.
Trims the rear stroke by 20 mm to synchronize yarn tensioning arms on a weaving loom, relying on the DMSG solid-state sensor to confirm the exact 5 mm minimum position.
If you need less force, step down to the 25 mm bore (245 N push at 0.5 MPa); if your payload is heavier, step up to the 40 mm bore (628 N push). Choose this MBLCJ over an MBLJ when your cycle speed requires tunable end-cover protection, or over an MBLC when you need that 5-25 mm rear travel window. Remember, the adjuster is a travel stop and the cushion only decelerates—neither holds position pneumatically.
For exact replacement, match the 32 mm bore, 25 mm stroke, 20 mm adjust code, G1/8 port, PT thread, Basic/FA/LB mounting, and the -S magnet. Mounting is limited to Basic, FA, or LB; there is no SDB pivot or back-cover option. Overall length extends based on A + 2 x stroke + adjust.
Quick checklist
At 0.5 MPa, this 32 mm bore cylinder provides 402 N push and 346 N pull. At 0.7 MPa, push increases to 563 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
The rear adjuster physically stops the piston within a 5 to 25 mm usable window, setting the end position. The adjustable air cushion only tunes the deceleration speed near that end. Neither mechanism locks the load; position holding requires live air or an external lock.
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