Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-100
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-100 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 100mm for a usable window of 300–400mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke400 mm
- Adjustable300–400 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-100
The AirTAC MBLCJ40X400-100 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. You can trim up to 100 mm of travel at the rear, yielding a usable stroke window of 300 to 400 mm. Driven by a Ø16 carbon-steel rod with a 20 µm hard-chrome plating, it delivers 628 N of push force and 528 N of pull force at 0.5 MPa. This 400 mm stroke suits long-travel indexing on packaging machines.
Unlike the base MBLJ which relies on a fixed rubber bumper, this MBLCJ variant uses screw-tunable end-of-stroke deceleration to protect the end covers during heavy, fast moves. The riveted rolling-packed aluminum barrel pairs with a heterogeneous two-way grease-retaining piston seal to maintain lubrication over long cycles. Note that this specific SKU lacks the -S magnet code, meaning it cannot accept an AirTAC CMSG, DMSG, or EMSG position sensor. The rear stopper sets the travel end; it is not a lock and will not hold a load without live air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-100 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-100 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 400 mm |
| Adjustable window | 300–400 mm (trim 100 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 MBLCJ40X400-100
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | Nominal stroke length in mm. |
| -100 | 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 MBLCJ40X400-100 Is Used
Corrugated Box Folding
Drives the long-travel folding arm on a corrugated carton erecting machine, using the 628 N push force to square heavy board while the tunable air cushion halts the 400 mm sweep smoothly.
Pallet Strapping Head
Positions the strapping head carriage on an end-of-line palletizer, using the 300 to 400 mm adjustable window to dial in the exact feed distance without re-plumbing the pneumatic circuit.
Bulk Bag Diverter
Actuates a diverter gate on a bulk material conveyor, relying on the adjustable end cushions to decelerate the heavy gate assembly at the end of its 400 mm travel without slamming.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X400-100 the Right Cylinder?
If you need less push force, step down to the Ø32 bore which provides 402 N of push at 0.5 MPa. For heavier displacement, step up to the Ø50 bore which yields 981 N of push at 0.5 MPa. Choose this MBLCJ over the MBLJ when your moving mass requires tunable deceleration rather than a fixed bumper impact, or over the MBLC when you need to fine-tune the end position by up to 100 mm.
Because this 400 mm stroke approaches the 500 mm maximum for a Ø40 bore, the 16 mm rod is susceptible to bending under lateral stress—always use an external guide rail to support the payload. The rear adjuster and the adjustable cushion only control travel limits and deceleration; neither acts as a mechanical lock to hold position. Mounting is limited to Basic, FA flange, or LB foot brackets (no SDB pivot or back-cover options exist for this series). For a direct replacement, match the 40 mm bore, 400 mm stroke, 100 mm adjust code, G1/4 port, PT thread, and confirm no magnet is fitted.
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 MBLCJ40X400-100 FAQ
At 0.5 MPa, this double-acting cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force reaches 880 N, with a theoretical maximum of 128 kgf at 1.0 MPa. The 100 mm rear adjuster allows you to trim the 400 mm stroke down to a 300 mm usable window.
No, this specific SKU does not include the -S code, so it lacks the built-in piston magnet and cannot accept AirTAC CMSG (reed), DMSG (solid-state), or EMSG (electronic) sensor switches. You must select an MBLCJ model with the S suffix for position detection.
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