Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X40-30S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X40-30S is a genuine double-acting aluminum-barrel mini cylinder with a Ø50mm bore, a 40mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 10–40mm. Adjustable air cushion (both ends).
- BoreØ50 mm
- Stroke40 mm
- Adjustable10–40 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 MBLCJ50X40-30S
The AirTAC MBLCJ50X40-30S is a compact double-acting aluminum mini cylinder engineered for heavy-duty performance in tight spaces. It features a rear adjustable stroke stopper allowing you to trim up to 30 mm of travel, creating a precise usable window of 10-40 mm. Driven by a Ø16 mm hard-chrome plated carbon-steel rod, it delivers 981 N of push force and 881 N of pull force at 0.5 MPa. Equipped with a built-in magnet (-S), it supports CMSG reed and DMSG/EMSG electronic sensors for position feedback.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model features a screw-tunable adjustable air cushion at both ends. This allows you to precisely dial in end-of-stroke deceleration for heavier moving loads, protecting the end covers from impact damage. The riveted rolling-packed aluminum barrel and heterogeneous two-way grease-retaining piston seal ensure reliable service in demanding 30-800 mm/s cycles.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X40-30S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X40-30S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 mm |
| Nominal stroke | 40 mm |
| Adjustable window | 10–40 mm (trim 30 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 MBLCJ50X40-30S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | Nominal stroke length in mm. |
| -30 | 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 MBLCJ50X40-30S Is Used
Stator Lamination Stacking
Provides 981 N of clamping force to press and align thin electrical steel laminations for electric motor stators, using the 10-40 mm stroke window to compensate for varying sheet counts.
Beverage Crate Diverting
Handles rapid routing of filled beverage crates on a packaging line, using the tunable air cushions to decelerate the 881 N pull load smoothly without jarring the glass bottles.
Printed Circuit Board Testing
Drives an automated bed-of-nails fixture against populated PCBs, utilizing the DMSG electronic sensor feedback to confirm test probe contact within the 10-40 mm travel range.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X40-30S the Right Cylinder?
When sizing this 50 mm bore (981 N push at 0.5 MPa), step down to the 40 mm bore if your load requires only 628 N, or step up to the 63 mm bore (1558 N push) for heavier 318 kgf maximum loads. Choose the MBLCJ over the MBLJ when your application velocity demands tunable pneumatic cushioning rather than a fixed bumper, or select the MBLC if you need a fixed stroke without a rear adjuster. For exact replacements, match the 50 mm bore, 40 mm stroke, 30 mm adjust code, G1/4 port, PT thread, Basic/FA/LB mounting, and the -S magnet.
Remember that the rear stopper is a travel end adjustment, not a mechanical lock, and the air cushion only decelerates; neither will hold a load in place without live air pressure. Mounting is limited to Basic, FA (flange), or LB (foot) styles, as this series omits SDB pivot and back-cover options.
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 MBLCJ50X40-30S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push force increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa.
The rear stroke adjuster is a mechanical travel stop that lets you trim the stroke by up to 30 mm (usable window 10-40 mm), but it does not lock the load. The adjustable air cushion at both ends is a screw-tunable valve that controls end-of-stroke deceleration to prevent impact damage; it also does not hold position.
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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