Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-40S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-40S 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 40mm for a usable window of 410–450mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke450 mm
- Adjustable410–450 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 MBLCJ40X450-40S
The AirTAC MBLCJ40X450-40S 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 push and 528 N pull force at 0.5 MPa. The rear stopper allows you to trim up to 40 mm of travel, creating a usable 410 to 450 mm end-position window. This is ideal for applications needing exact positioning without machining custom spacers.
A 450 mm stroke on a 16 mm carbon-steel rod demands careful integration to prevent side-load bending, making an external linear guide essential. The riveted rolling-packed aluminum barrel and grease-retaining piston seal ensure long service life. The built-in magnet (-S) supports CMSG reed and DMSG/EMSG electronic sensors for position feedback. Tuning the end-of-stroke cushioning protects the covers during heavy, fast moves, but it only decelerates; it does not lock the load.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-40S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 450 mm |
| Adjustable window | 410–450 mm (trim 40 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 MBLCJ40X450-40S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | Nominal stroke length in mm. |
| -40 | 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 MBLCJ40X450-40S Is Used
Printed Circuit Board Conveyor
Transfers large PCB panels between SMT inspection lanes. The 628 N push force handles heavy aluminum carriers, while the 410-450 mm adjustable window dials in the exact handoff position.
Automated Dispensing Head
Positions a sealant applicator over varying automotive windshield widths. The tunable air cushions absorb the heavy 450 mm traverse, preventing nozzle vibration at the end of stroke.
Textile Fabric Take-up
Actuates a tensioning roller on long fabric rolls. The 16 mm hard-chrome rod resists wear, though an external guide is required to manage the 450 mm stroke and prevent rod bending.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-40S the Right Cylinder?
If 528 N of pull at 0.5 MPa is insufficient, step up to the 50 mm bore (981 N push / 881 N pull); if you need less force, step down to the 32 mm bore (402 N push / 346 N pull). Choose this MBLCJ over the MBLJ when your moving mass requires tunable pneumatic deceleration instead of a fixed rubber bumper. Choose it over the MBLC if you need to fine-tune the stroke length on the machine.
Remember that the rear adjuster is a travel stop, not a lock, and the cushion only decelerates; neither holds position without live air. Mounting is limited to Basic, FA (flange), or LB (foot) as there is no SDB pivot or back-cover option. To replace this unit, match the 40 mm bore, 450 mm stroke, 40 mm adjust code, G1/4 port, PT thread, and -S magnet.
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 MBLCJ40X450-40S FAQ
At 0.5 MPa it provides 628 N push and 528 N pull force. At 0.7 MPa the push force increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa.
The rear adjuster physically stops the piston to set your stroke window between 410 and 450 mm, but it does not lock the load in place. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the end caps to absorb shock, which is distinct from the fixed bumper found on the MBLJ series.
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.
Related AirTAC Adjustable-Stroke Cylinders
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