
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X250-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 250mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 230–250mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X250-20 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 integrated rear stopper allows you to trim up to 20 mm of travel, creating a precise usable stroke window of 230 to 250 mm for this 250 mm nominal length.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable end-of-stroke cushioning to decelerate heavier loads smoothly and protect the end covers. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal retain lubrication over a high 30-800 mm/s speed range. Note that this specific SKU lacks a built-in magnet, meaning it cannot accept a CMSG, DMSG, or EMSG position sensor.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X250-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 250 mm |
| Adjustable window | 230–250 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. |
| ×250 | 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).
Regulates fabric tension on a weaving loom, using the 230-250 mm stroke window to fine-tune yarn feed while the air cushion absorbs the high-frequency rod reversals.
Actuates a routing flap on a packaging conveyor, where the 402 N push force easily overcomes carton drag and the cushion prevents end-cover slam during rapid cycling.
Raises and lowers an adhesive dispensing head, trimming the exact dispense height via the rear stopper without relying on the cushion to lock the rod in place.
Stepping down, the 25 mm bore yields 245 N push at 0.5 MPa, whereas stepping up to the 40 mm bore provides 628 N. Choose this 32 mm model for mid-range actuation where the 230-250 mm adjustable window and tunable cushioning outperform the fixed-stroke MBLC. The rear adjuster sets the travel end-point and the cushion only decelerates; neither holds the load, so external locking is needed for position holding. Mounting is limited to Basic, FA flange, or LB foot (no SDB or back-cover options), and the overall length equals A + 2 x stroke + adjust. For exact replacements, match the 32 mm bore, 250 mm stroke, 20 mm adjust code, G1/8 port, PT thread, and no magnet.
Quick checklist
At 0.5 MPa, the 32 mm bore provides 402 N push and 346 N 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 adjustable stroke uses a rear travel stopper to trim the end position, giving a usable window of 230-250 mm for this SKU. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the end covers. Neither holds the load in place; the cushion is for deceleration and the stopper just sets the travel endpoint.
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