
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X100-30 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 100mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 70–100mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ40X100-30 is a compact double-acting mini cylinder with a single Ø16mm rod, delivering 628N push and 528N pull at 0.5MPa. It features a rear stroke adjuster allowing you to trim up to 30mm of travel, creating a usable end-position window of 70 to 100mm. A screw-tunable adjustable air cushion at both ends absorbs kinetic energy to protect the end covers during fast moves.
This 40mm bore uses a G1/4 port and an M12x1.25 rod-end thread. The riveted aluminum barrel and grease-retaining piston seal maintain performance in tight spaces. This specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors. The rear stopper sets the travel end but does not lock the load, and the cushion only decelerates; neither holds position pneumatically without live air.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X100-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 70–100 mm (trim 30 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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).
Uses the 70-100mm adjustable window to precisely strike and separate plastic sheets from heated molds, relying on the 628N push force to overcome material adhesion.
Tunes the end-of-stroke air cushion to softly engage populated circuit boards at high cycle rates without cracking delicate solder joints.
Drives a 100mm capping head down onto plastic bottle threads, using the rear 30mm stopper to dial in exact torque distance without drifting.
Step down to the 32mm bore (402N push at 0.5MPa) for lighter loads, or step up to the 50mm bore (981N push at 0.5MPa) if your payload exceeds 628N. Choose this MBLCJ over the MBLJ when you need screw-tunable end-of-stroke deceleration instead of a fixed rubber bumper, or over the MBLC when your machine requires a variable 70-100mm travel window. Remember, the rear adjuster is a travel stop and the cushion only decelerates; neither acts as a lock to hold a load in place.
Mounting is limited to Basic, FA flange, or LB foot brackets; there is no SDB pivot or back-cover option. The overall length equals A + 2x100 + 30mm. To match this replacement exactly, verify bore 40, stroke 100, adjust code 30, G1/4 port, PT thread, and no magnet (no -S). Because this SKU lacks the -S magnet, it cannot accept a sensor switch.
Quick checklist
At 0.5MPa, it provides 628N push and 528N pull. At 0.7MPa, push increases to 880N. The maximum theoretical force is 128kgf at 1.0MPa. Operating pressure ranges from 0.15 to 1.0MPa.
The rear adjuster trims travel from 70 to 100mm, acting as a mechanical stop but not a load lock. The air cushion screw tunes end-of-stroke deceleration. This specific SKU has no built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.