Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 450mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 440–450mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke450 mm
- Adjustable440–450 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 MBLCJ40X450-10
The AirTAC MBLCJ40X450-10 is a compact double-acting mini cylinder with a 40mm bore and 450mm stroke. It features a rear travel stopper that trims up to 10mm, creating a usable end-position window of 440 to 450mm. Driven by a Ø16mm hard-chrome plated carbon-steel rod, it delivers 628N of push force and 528N of pull force at 0.5 MPa. The riveted aluminum barrel keeps the body light for tight spaces, while the two-way grease-retaining piston seal maintains lubrication over long traverses.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses a screw-tunable adjustable air cushion at both ends to decelerate the load smoothly before impact. This protects the end covers during fast, heavy moves. Note this SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensors. The rear adjuster sets the travel end but does not lock the load; external holding mechanisms are required for position retention.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 450 mm |
| Adjustable window | 440–450 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 MBLCJ40X450-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 MBLCJ40X450-10 Is Used
CNC Lathe Bar Feeder
Pushes raw bar stock into the spindle collet over a 450mm run, using the 10mm rear stopper to fine-tune the feed length while the air cushion prevents harsh impacts at 628N force.
Packaging Carton Flapper
Actuates a folding blade on a continuous carton sealing line, where the tunable cushion slows the 880N @0.7MPa thrust before the stroke end to prevent crushing the cardboard.
Woodworking Router Lift
Raises and lowers a heavy router spindle assembly, utilizing the 440-450mm usable window to dial in exact cutting depths without relying on the cylinder to hold the load statically.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-10 the Right Cylinder?
If you need less force, stepping down to the 32mm bore yields 402N push at 0.5 MPa, while stepping up to the 50mm bore provides 981N push. Choose this MBLCJ over the MBLJ when your application's speed or mass requires tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC when you need that rear travel stopper to trim the 440-450mm window. The adjuster and air cushion decelerate the load but neither acts as a mechanical lock, so the rod will drift without live air. Mounting is limited to Basic, FA, or LB; no SDB or back-cover options exist. For a direct replacement, match the 40mm bore, 450mm stroke, 10mm adjust code, G1/4 port, PT thread, and no-magnet configuration. Because the stroke is 450mm, the small 16mm rod is highly susceptible to side-load bending; always guide the load externally to prevent cylinder damage.
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 MBLCJ40X450-10 FAQ
At 0.5 MPa, this 40mm bore cylinder provides 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 880N. The absolute maximum theoretical force is 128 kgf at 1.0 MPa.
The rear adjuster is a mechanical travel stop that trims the stroke by up to 10mm (usable window 440-450mm), but it does not lock the load in place. The adjustable air cushion uses screw-tunable valves at both ends to decelerate the piston before it hits the cover, reducing impact stress. Neither feature holds position without live air.
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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