Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-50
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-50 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 50mm for a usable window of 400–450mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke450 mm
- Adjustable400–450 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 MBLCJ40X450-50
The AirTAC MBLCJ40X450-50 is a compact double-acting mini cylinder featuring a 40mm bore and a 450mm stroke. It generates 628N of push force and 528N of pull force at 0.5MPa. This model integrates a rear travel stopper allowing you to trim up to 50mm of stroke, creating a precise usable extension window of 400 to 450mm. It is equipped with an adjustable air cushion at both ends to tune deceleration for heavy loads.
Unlike the base MBLJ which relies on a fixed rubber bumper, the screw-tunable air cushion here actively manages end-of-stroke kinetic energy to prevent end-cover damage. The 16mm carbon-steel rod features 20μm hard-chrome plating to resist scuffing, while the heterogeneous two-way grease-retaining piston seal maintains lubrication over long strokes. Note that this specific SKU lacks a built-in magnet, so it cannot be used with CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-50 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-50 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 450 mm |
| Adjustable window | 400–450 mm (trim 50 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 MBLCJ40X450-50
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | Nominal stroke length in mm. |
| -50 | 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 MBLCJ40X450-50 Is Used
Textile Loom Beater
Drives the 400-450mm adjustable beating motion on weaving looms, using the tunable air cushion to smoothly arrest the 628N push force without jarring the warp threads.
Pallet Transfer Pusher
Indexes loaded pallets between stations, trimming the rear stroke by up to 50mm to hit exact 400mm stop positions while the cushion absorbs the shock of heavy goods.
Wood Planer Feed Roll
Actuates the feed roller pressure bar on industrial planers, relying on the 528N pull force and 450mm travel to accommodate varying board thicknesses.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X450-50 the Right Cylinder?
If you need less force, stepping down to the 32mm bore yields 402N push at 0.5MPa; if you need more power, stepping up to the 50mm bore provides 981N push. Choose this MBLCJ over the MBLJ when your moved mass requires regulated end-of-stroke deceleration rather than a simple impact bumper, or over the MBLC if your machine clearances demand a variable 400-450mm travel window rather than a fixed length. Remember that the rear stopper sets the travel end and the cushion only decelerates; neither holds the load. For position holding, use an external lock. Mounting is limited to Basic, FA, or LB; no SDB or back-cover options exist. To replace this cylinder, match the 40mm bore, 450mm stroke, 50mm adjust code, G1/4 port, PT thread, and the absence of a magnet. Because the 450mm stroke is long relative to the 16mm rod, an external guide is recommended to prevent side-load bending.
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 MBLCJ40X450-50 FAQ
At 0.5MPa it provides 628N push and 528N pull. At 0.7MPa the push increases to 880N. The maximum theoretical force is 128kgf at 1.0MPa. The operating pressure range is 0.15 to 1.0MPa.
No, this specific SKU lacks a built-in magnet, so CMSG, DMSG, or EMSG electronic position sensors cannot be fitted. The rear 50mm stroke adjuster is a travel stop that sets the 400-450mm window, and the air cushion only decelerates; neither component locks or holds the load in place.
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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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