Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75S is a genuine double-acting aluminum-barrel mini cylinder with a Ø50mm bore, a 500mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 425–500mm. Adjustable air cushion (both ends).
- BoreØ50 mm
- Stroke500 mm
- Adjustable425–500 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- 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 MBLCJ50X500-75S
The AirTAC MBLCJ50X500-75S is a compact double-acting mini cylinder engineered for heavy-duty positioning. It features a rear travel stopper that permits up to 75mm of trim, creating a precise 425-500mm usable stroke window. Delivering 981N of push force at 0.5 MPa, this 50mm bore unit integrates an adjustable air cushion at both ends to decelerate high kinetic-energy loads smoothly, preventing end-cover damage. The riveted aluminum barrel and 20um hard-chrome plated carbon-steel rod ensure longevity in dynamic environments.
This SKU includes a built-in magnet (-S) for compatibility with AirTAC CMSG reed and DMSG or EMSG solid-state sensor switches to track rod position. Because the 500mm stroke pushes the limits of the 16mm rod, an external guide is strongly recommended to prevent side-load bending. The rear stopper sets the end position, while the cushion damps velocity—neither component locks the load in place, so external holding mechanisms are required for pneumatic positioning.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 mm |
| Nominal stroke | 500 mm |
| Adjustable window | 425–500 mm (trim 75 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 MBLCJ50X500-75S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 50 | Bore size in mm. |
| ×500 | Nominal stroke length in mm. |
| -75 | 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 MBLCJ50X500-75S Is Used
Injection Mold Ejection
Provides 981N of push force to eject heavy plastic parts from molds, using the 425-500mm stroke window to time the ejection length precisely.
Palletizer Strapping
Tunes the end-of-stroke air cushion to decelerate a 1374N thrust at 0.7 MPa when extending over 500mm to strap heavy pallets without shock-loading the frame.
Wood Planer Feed
Uses the built-in magnet (-S) with a DMSG electronic sensor to confirm rod extension in a 500mm wood planer feed system, ensuring consistent board thickness.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75S the Right Cylinder?
When sizing this actuator, stepping down to the 40mm bore reduces thrust to 628N push at 0.5 MPa, whereas stepping up to the 63mm bore yields 1558N. Choose this MBLCJ over the MBLJ when your application generates too much momentum for a fixed rubber bumper, or over the MBLC when you need to fine-tune the end position. The 75mm rear adjuster sets the travel limit but does not hold the load; live air pressure is required to maintain position. Mounting is restricted to Basic, FA flange, or LB foot brackets (no SDB or back-cover options exist). For a direct replacement, match the 50mm bore, 500mm stroke, 75mm adjust code, G1/4 port, PT thread, and the -S magnet. At 500mm, side-load mitigation is mandatory.
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 MBLCJ50X500-75S FAQ
This 50mm bore cylinder delivers 981N push and 881N pull at 0.5 MPa, 1374N push at 0.7 MPa, and a maximum theoretical force of 200kgf at 1.0 MPa. The 500mm stroke is the maximum standard limit for this bore size, utilizing a 16mm rod and G1/4 port.
The 75mm rear adjuster physically stops the piston to set your exact end-of-travel window between 425mm and 500mm, but it does not lock the load. The adjustable air cushion is a separate screw-tunable valve that bleeds trapped air to decelerate the piston near the end covers, preventing impact damage.
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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