
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X350-40 is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 350mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 310–350mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X350-40 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 rear stopper allows you to trim up to 40 mm of travel, creating a precise usable stroke window of 310 to 350 mm. This 350 mm travel length is ideal for automating longer linear movements on packaging or sorting machinery without switching to a bulky ISO profile body.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air cushioning to decelerate the rod at each stroke end, absorbing kinetic energy to protect the end covers during high-speed cycles. The 12 mm carbon-steel rod features 20 µm hard-chrome plating to resist corrosion and wear. Because this SKU lacks the -S suffix, it has no built-in magnet and cannot support CMSG, DMSG, or EMSG position sensors. Additionally, the riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal ensure consistent lubrication across the 30 to 800 mm/s speed range.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X350-40 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 350 mm |
| Adjustable window | 310–350 mm (trim 40 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. |
| ×350 | Nominal stroke length in mm. |
| -40 | 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 310-350 mm folding arms on case erectors, using the tuned air cushion to softly stop the 402 N push force without crushing cardboard edges.
Actuates a routing diverter on a packaging conveyor, relying on the 346 N pull force and adjustable stroke window to hit exact pallet clearances.
Traverses fabric guides on winding equipment, where the 40 mm rear stroke adjustment fine-tunes the 350 mm travel to maintain straight material rolls.
When sizing this 32 mm bore, consider stepping down to the 25 mm bore if your load requires less than 245 N of push force at 0.5 MPa, or stepping up to the 40 mm bore if you need 628 N to overcome higher friction. The MBLCJ is preferred over the MBLJ when your moving mass requires active deceleration rather than a fixed bumper impact, and over the MBLC when you need on-the-fly stroke length trimming. Remember that the rear adjuster is strictly a travel stop, and the cushion only decelerates; neither mechanism locks the rod, so external holding mechanisms are required for vertical loads. Mounting is limited to Basic, FA flange, or LB foot brackets, as no back-cover or SDB pivot options exist for this series. To replace this exact unit, match the 32 mm bore, 350 mm stroke, 40 mm adjust code, G1/8 port, PT thread, and confirm no magnet is needed. Because the stroke is 350 mm, the 12 mm rod is highly susceptible to side-load bending; always guide the load externally to prevent cylinder damage.
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 the 1.0 MPa operating pressure limit.
No, this specific SKU lacks the -S suffix, meaning it is manufactured without a built-in piston magnet. You must select an MBLCJ32X350-40S model to use AirTAC CMSG reed or DMSG/EMSG electronic solid-state sensors for rod position detection.
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