Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X40-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X40-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 40mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 30–40mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke40 mm
- Adjustable30–40 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X40-10
The AirTAC MBLCJ40X40-10 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, making it well-suited for mid-range automation tasks requiring controlled deceleration. The rear adjuster allows you to trim up to 10 mm of travel, creating a usable stroke window of 30 to 40 mm. Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable cushioning to protect the end covers during faster or heavier moves.
This SKU features a PT threaded port (G1/4), a Ø16 mm hard-chrome plated carbon steel rod, and an M12x1.25 rod-end thread. Because it lacks the -S code for a built-in magnet, this specific cylinder cannot accept an AirTAC CMSG, DMSG, or EMSG position sensor. The riveted rolling-packed aluminum barrel and heterogeneous two-way grease-retaining piston seal ensure stable friction performance. Remember that the rear adjuster is a travel stop, not a load-holding lock; the rod will drift without live air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X40-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X40-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 40 mm |
| Adjustable window | 30–40 mm (trim 10 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 MBLCJ40X40-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | Nominal stroke length in mm. |
| -10 | 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 MBLCJ40X40-10 Is Used
CNC Lathe Tool Turret
Indexing a mid-sized tool turret where the 628 N push force securely seats the tool block, while the adjustable air cushion prevents impact damage during the 30-40 mm stroke window.
Bottling Line Diverter
Actuating a flow diverter gate on a beverage line; the rear stroke stopper precisely sets the 10 mm trim needed to clear varying container widths without repositioning the whole cylinder.
Pneumatic Press Pin Insertion
Driving press-fit pins into aluminum housings, using the 880 N force at 0.7 MPa for insertion and the tunable cushion to decelerate the rod before the end of stroke.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X40-10 the Right Cylinder?
When sizing this 40 mm bore, stepping down to a 32 mm bore reduces the output to 402 N push at 0.5 MPa, while stepping up to a 50 mm bore increases the push force to 981 N. Choose the MBLCJ over the MBLJ when your cycle speed demands tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC if you need that rear travel-stop flexibility. Neither the cushion nor the adjuster acts as a brake or lock, so external guides are required for position holding. Mounting is limited to Basic, FA (flange), or LB (foot) brackets, as no back-cover or SDB pivot options exist for this body. To replace this cylinder exactly, match the 40 mm bore, 40 mm stroke, 10 mm adjust code, G1/4 port, PT thread, and confirm no magnet is present.
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 MBLCJ40X40-10 FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force is 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa, with an operating pressure range of 0.15 to 1.0 MPa.
The adjustable stroke is a rear stopper that lets you mechanically trim the travel end-point up to 10 mm, creating a 30-40 mm usable window. The adjustable air cushion uses a screw to tune the end-of-stroke deceleration rate. Neither feature locks or holds the load; the rod will drift without continuous air pressure.
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