Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 40mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 20–40mm. Adjustable air cushion (both ends).
- BoreØ32 mm
- Stroke40 mm
- Adjustable20–40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S
The AirTAC MBLCJ32X40-20S is a compact double-acting mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers a 402 N push force at 0.5 MPa. The rear stopper lets you trim up to 20 mm of travel, creating a usable stroke window of 20 to 40 mm for precise end-positioning.
Unlike the fixed rubber bumper found on the MBLJ series, the screw-tunable air cushions on this SKU decelerate the rod near the stroke ends, absorbing kinetic energy to protect the end covers during faster cycling. The riveted aluminum barrel and 20 µm hard-chrome plated carbon-steel rod withstand demanding environments. The built-in magnet (-S) supports CMSG reed and DMSG or EMSG solid-state sensor switches for position detection.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 40 mm |
| Adjustable window | 20–40 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S Is Used
PCB Edge Router Feed
Pushes a depaneling router carriage across a 40 mm path. The 20 mm stroke trimmer dials in the exact cutting endpoint, while the 402 N push force handles the router carriage mass.
Bottle Capper Press
Drives a 32 mm screw capping head. The tunable air cushion prevents cap slippage by slowing the rod before impact, avoiding the jarring stop of a fixed bumper.
Textile Guide Yarn Traverse
Oscillates a yarn guide over a 20-40 mm window. The rear stopper sets the exact winding width, and the integrated magnet works with DMSG sensors to trigger the traverse reverse.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S the Right Cylinder?
If you need less force, step down to the 25 mm bore (245 N push at 0.5 MPa); if your payload is heavier, step up to the 40 mm bore (628 N push at 0.5 MPa). Choose this MBLCJ over the MBLJ when your cycle speed requires tunable end-deceleration rather than a fixed bumper, or over the MBLC when you need a rear travel stopper to fine-tune the end position.
Remember that the rear adjuster is a travel stop, not a lock, and the air cushion only decelerates; neither holds the load if air pressure drops. For position holding, use an external locking mechanism. Mounting is limited to Basic, FA, or LB; there is no SDB or back-cover option. Replacement must match the 32 mm bore, 40 mm stroke, 20 mm adjust code, G1/8 port, PT thread, and the -S magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X40-20S FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 346 N. At 0.7 MPa, the push force is 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa.
The rear adjustable stroke is a mechanical travel stopper that limits the rod extension from 40 mm down to 20 mm. The adjustable air cushion is a separate needle valve that controls end-of-stroke deceleration. Neither holds the load in place without continuous air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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