Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X450-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X450-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 450mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 430–450mm. Adjustable air cushion (both ends).
- BoreØ32 mm
- Stroke450 mm
- Adjustable430–450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- 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 MBLCJ32X450-20S
The AirTAC MBLCJ32X450-20S is a compact double-acting aluminum mini cylinder featuring a rear adjustable stroke stopper and an adjustable air cushion at both ends. It delivers 402 N of push force and 346 N of pull force at 0.5 MPa. The 20 mm rear trimmer provides a usable travel window of 430 to 450 mm, letting you fine-tune the end position without mechanical shims. A built-in magnet enables position feedback via CMSG reed or DMSG and EMSG solid-state sensors.
Unlike the fixed rubber bumper found on the MBLJ variant, the screw-tunable air cushion on this unit decelerates heavy loads rapidly at the stroke extremes, shielding the end covers from impact. The riveted rolling-packed barrel pairs with a grease-retaining piston seal to lock in lubrication, while the carbon-steel rod features 20 µm hard-chrome plating to resist scuffing. Because the 450 mm stroke is substantial for a 32 mm bore, the 12 mm rod is highly susceptible to bending under lateral stress and requires an external guide to prevent premature seal failure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X450-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X450-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 450 mm |
| Adjustable window | 430–450 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 MBLCJ32X450-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 32 | Bore size in mm. |
| ×450 | Nominal stroke length in mm. |
| -20 | 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 MBLCJ32X450-20S Is Used
PCB Edge Conveyor Stopper
Provides a 430-450 mm extension to halt printed circuit boards on a long conveyor, using the tunable cushion to stop the 402 N thrust abruptly without bouncing the delicate panels.
Textile Loom Tensioning Arm
Extends to maintain fabric tension across a wide weaving loom, where the adjustable rear stopper sets the exact 450 mm travel limit and the DMSG sensor confirms thread presence.
Carton Flap Folding Plow
Drives a folding plow on a packaging line at 563 N (0.7 MPa), relying on the end cushioning to soften the 450 mm high-speed stroke and protect the mechanical linkage from shock.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X450-20S the Right Cylinder?
Selecting this 32 mm bore involves sizing against its neighbors: step down to a 25 mm bore for lighter loads (245 N push at 0.5 MPa) or step up to a 40 mm bore for heavier cycles (628 N push at 0.5 MPa). Choose this MBLCJ over the MBLJ when your application speed demands tunable pneumatic deceleration rather than a fixed rubber bumper, or over the MBLC if you need to trim the end position by up to 20 mm. The rear adjuster acts only as a travel stop and the cushion solely decelerates; neither will hold a load statically without live air pressure, so use an external locking device for position holding.
Mounting is restricted to Basic, FA flange, or LB foot brackets; this series does not support SDB pivot mounts or back-cover attachments. The overall length calculates to A + 2 x stroke + adjust, meaning the 20 mm trimmer adds to the total footprint. The default PT tapered port threads into the G1/8 port, and the -S code confirms the magnetic piston is installed for sensor switching. For a 450 mm stroke, always support the load with an external guide to prevent rod bending and uneven seal wear.
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 MBLCJ32X450-20S FAQ
At 0.5 MPa it provides 402 N push and 346 N pull force; at 0.7 MPa it provides 563 N push. The maximum theoretical force is 82 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, handles speeds of 30-800 mm/s, and uses a G1/8 port with an M10x1.25 rod end.
The rear stroke adjuster physically stops the piston to set a 430-450 mm travel window, but it does not lock or hold the load. The adjustable air cushion independently throttles exhaust air to decelerate the piston near the end caps, preventing harsh impacts at high speeds.
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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