Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-75S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-75S is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 400mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 325–400mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke400 mm
- Adjustable325–400 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 MBLCJ40X400-75S
The AirTAC MBLCJ40X400-75S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. A 40mm bore yields 628N push and 528N pull force at 0.5MPa. The 75mm rear adjuster creates a usable 325-400mm travel window, allowing precise end-position tuning without redesigning your machine layout.
Unlike the fixed rubber bumper on an MBLJ, this model uses screw-tunable pneumatic cushioning to decelerate heavy 128kgf loads over a 400mm run, protecting the end covers. The riveted rolling-packed barrel and 20um hard-chrome carbon-steel rod withstand 30-800mm/s cycling. The -S code adds a built-in magnet for CMSG, DMSG, or EMSG position sensing. Note the overall length equals A + 2 x stroke + adjust, so plan your envelope accordingly.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-75S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-75S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 400 mm |
| Adjustable window | 325–400 mm (trim 75 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-75S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | Nominal stroke length in mm. |
| -75 | 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 MBLCJ40X400-75S Is Used
Textile Loom Beam Indexing
Drives a heavy warp beam carriage through a 325-400mm adjustable travel window, using the tunable cushion to halt the 628N load smoothly without jarring the delicate yarn tension.
CNC Pallet Shuttle Damping
Positions machining pallets along a 400mm axis, where the dual screw-tunable air cushions absorb the 880N kinetic energy at 0.7MPa, preventing end-cover damage during rapid automated tool changes.
Packaging Carton Erector
Actuates a carton forming arm over an extended 400mm reach, relying on the built-in magnet and DMSG solid-state sensor to confirm full extension despite the long, slender 16mm chrome rod.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-75S the Right Cylinder?
For lighter loads, the 32mm bore offers 402N push at 0.5MPa; for heavier thrust, the 50mm bore provides 981N. Choose this MBLCJ over the MBLJ when your end-of-stroke speeds demand tunable deceleration rather than a fixed bumper, or over the MBLC if you need that 325-400mm adjustable travel window rather than a fixed 400mm stop.
The rear adjuster sets a physical travel stop, and the cushion only decelerates; neither holds the load pneumatically, so use an external lock for vertical positioning. Mounting is limited to Basic, FA flange, or LB foot (no SDB pivot or back cover). To replace this SKU exactly, match the 40mm bore, 400mm stroke, 75mm adjust, G1/4 port (PT thread), and the -S magnet. At 400mm, the Ø16 rod is highly susceptible to side-load bending; always guide the load externally.
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 MBLCJ40X400-75S FAQ
At 0.5MPa it provides 628N push and 528N pull force, increasing to 880N push at 0.7MPa, with a maximum theoretical thrust of 128kgf at 1.0MPa. The 75mm rear adjuster allows you to trim the 400mm stroke down to a 325mm minimum, giving a usable 325-400mm travel window.
No. The rear mechanism acts as a travel stop to set the end position, while the adjustable air cushion only regulates deceleration speed near the stroke ends. Neither component locks or holds a load pneumatically; a separate external locking mechanism is required for vertical position holding.
Authorized Export Seller
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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