
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X400-30 is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 400mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 370–400mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X400-30 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 402 N of push force at 0.5 MPa. The rear stopper allows you to trim up to 30 mm of travel, creating a usable stroke window of 370-400 mm for dialing in exact end positions. A 400 mm stroke on a Ø12 mm rod demands an external guide to prevent rod sag and side-load damage.
Unlike the base MBLJ which relies on a fixed rubber bumper, this SKU uses screw-tunable air cushions to decelerate heavy loads smoothly over long travels. The riveted rolling-packed barrel and heterogeneous grease-retaining piston seal maintain consistent lubrication. Note that this specific configuration lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X400-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 400 mm |
| Adjustable window | 370–400 mm (trim 30 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. |
| ×400 | Nominal stroke length in mm. |
| -30 | 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).
Drives a 400 mm routing arm in a PCB assembly line, using the 370-400 mm stroke window to fine-tune the exact stop position for different panel widths.
Adjusts the width of a fabric tentering guide. The dual air cushions absorb the kinetic energy of the 402 N push force over the long stroke, preventing end-cover damage.
Actuates a sanding belt tensioning mechanism. The long travel accommodates varying belt lengths, while the cushioning softens the high-speed retraction impact.
Select this 32 mm bore when you need 402 N push force at 0.5 MPa over a 400 mm travel. If your application requires less force, step down to the 25 mm bore (245 N push); if you need more clamping power, step up to the 40 mm bore (628 N push). The adjustable air cushion is invaluable for long-stroke kinetic energy, but remember it only decelerates the load—it is not a lock. The rear stroke adjuster is also just a travel stop, so external locking mechanisms are required to hold position without live air.
Mounting is limited to Basic, FA flange, or LB foot styles; there is no SDB pivot or back-cover option for the MBLCJ series. When replacing this cylinder, match the 32 mm bore, 400 mm stroke, 30 mm adjust code, G1/8 port, PT thread form, and confirm no magnet (-S) is present. The overall length extends by the 30 mm adjuster, so verify your machine envelope clearance.
Quick checklist
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 346 N of pull force. At 0.7 MPa, the push force increases to 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa.
This specific SKU does not have a built-in magnet (-S), so it cannot accept CMSG, DMSG, or EMSG sensors. The adjustable air cushion at both ends is a screw-tunable valve that controls exhaust flow to decelerate the piston near the end of the stroke; it is not a lock or brake. The rear 30 mm stroke adjuster is a mechanical travel stop, not a position holder.
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