
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X30-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 30mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 10–30mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X30-20 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 and 346 N of pull force at 0.5 MPa. The 20 mm rear adjuster creates a usable stroke window of 10 to 30 mm, allowing you to dial in the exact end position for short-travel tasks.
Unlike the fixed rubber bumper found on the base MBLJ series, the screw-tunable air cushion on this MBLCJ variant lets you regulate end-of-stroke deceleration, absorbing kinetic energy to protect the end covers during faster or heavier moves. The riveted rolling-packed aluminum barrel pairs with a heterogeneous two-way grease-retaining piston seal, while the Ø12 mm carbon-steel rod features 20 µm hard-chrome plating for wear resistance. Note that this specific SKU lacks a built-in magnet, so it cannot accommodate a CMSG, DMSG, or EMSG position sensor.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X30-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 30 mm |
| Adjustable window | 10–30 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. |
| ×30 | 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).
Provides a precise 10-30 mm mechanical stop for a drill head, utilizing the 402 N push force to set Z-axis depth on printed circuit board routing machines.
Dials in clamping pressure for delicate plastic injection mold inserts, using the tunable air cushion to prevent impact damage during the short 30 mm travel.
Drives short-stroke robotic gripper jaws, where the compact riveted aluminum body saves space and the cushion ensures smooth jaw closure without snatching.
Stepping down to a 25 mm bore lowers the output to 245 N push at 0.5 MPa, whereas stepping up to a 40 mm bore increases it to 628 N. Choose this 32 mm bore when your payload requires moderate force within a tight 10-30 mm travel window. The MBLCJ is preferred over the MBLJ when shock absorption is critical, and over the MBLC when you need that travel adjustment flexibility.
Remember that the rear adjuster is a travel stop, and the cushion only decelerates; neither mechanism locks or holds the load, so external guidance is required for position holding. Mounting is limited to Basic, FA (flange), or LB (foot) styles, as this series omits the SDB pivot and back-cover options. For a direct replacement, match the 32 mm bore, 30 mm nominal stroke, 20 mm adjust code, G1/8 port, PT thread, and confirm no magnet is fitted.
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.
The 20 mm rear adjuster acts as a mechanical travel stop, letting you trim the usable stroke down to a 10 mm minimum window. The adjustable air cushion is a screw-tunable valve that controls exhaust flow to decelerate the piston near the end covers. Neither feature locks or holds the load in place.
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.
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