Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X350-100
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X350-100 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 350mm nominal stroke and a rear adjustable-stroke stopper — trim up to 100mm for a usable window of 250–350mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke350 mm
- Adjustable250–350 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X350-100
The AirTAC MBLCJ40X350-100 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa. The 100 mm rear adjuster yields a usable travel window of 250 to 350 mm, letting you fine-tune the end position without mechanical stops on the tooling. This 350 mm stroke suits longer linear transfers and mid-stroke indexing tasks.
Unlike the fixed rubber bumper on an MBLJ, the screw-tunable air cushion here decelerates heavier loads at high speeds, protecting the end covers. The riveted rolling-packed barrel and 20 um hard-chrome plated carbon-steel rod handle demanding cycles. Note this specific SKU lacks a built-in magnet (-S), so it cannot support CMSG, DMSG, or EMSG position sensors. At 350 mm, the Ø16 rod requires an external guide to prevent bending under side loads.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X350-100 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X350-100 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 350 mm |
| Adjustable window | 250–350 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 MBLCJ40X350-100
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MBLCJ40X350-100 Is Used
Packaging Carton Flap Folding
Drives a 300 mm folding arm on a corrugated box sealer. The 628 N thrust handles cardboard resistance, while the air cushion prevents end-cover damage during rapid 800 mm/s cycling.
Textile Loom Beam Indexing
Shifts heavy warp beams across a 250 to 350 mm window. The rear travel stopper dials in the exact stacking pitch without needing custom spacer blocks on the machine frame.
Woodworking Panel Push-off
Ejects routed MDF panels from a CNC router bed. The tunable cushion slows the 350 mm extension safely, stopping the 128 kgf maximum load from violently slamming the front cover.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X350-100 the Right Cylinder?
Step down to a Ø32 bore (402 N push at 0.5 MPa) for lighter loads, or step up to a Ø50 bore (981 N push) when you need substantially more thrust. Choose this MBLCJ over an MBLJ when your moving mass requires tunable end-of-stroke deceleration rather than a fixed bumper, or over an MBLC when you need to trim the travel window. The rear adjuster sets the travel end-point, while the cushion governs deceleration; neither acts as a mechanical lock to hold a load in place.
Mounting is limited to Basic, FA (flange), or LB (foot); there is no back-cover or SDB pivot option. The overall length equals A + 2 x stroke + adjust, so plan your envelope accordingly. This SKU uses a G1/4 port with PT (tapered) threads and an M12x1.25 rod-end. To replace, match the 40 mm bore, 350 mm stroke, 100 mm adjust code, PT port, and confirm no magnet is fitted. For any stroke at or beyond 300 mm, always use an external guide to support the rod.
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 MBLCJ40X350-100 FAQ
At 0.5 MPa it pushes with 628 N and pulls with 528 N. At 0.7 MPa the push force is 880 N, with a theoretical maximum of 128 kgf at 1.0 MPa. The 100 mm rear adjuster allows you to trim the stroke within a usable window of 250 to 350 mm.
No, this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG electronic switches. Additionally, the adjustable air cushion only decelerates the piston near the stroke ends, and the rear adjuster acts as a travel stop; neither component mechanically locks or holds the load in place.
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