Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 100mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 80–100mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke100 mm
- Adjustable80–100 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 MBLCJ25X100-20S
The AirTAC MBLCJ25X100-20S is a compact double-acting mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. It delivers 245 N push and 206 N pull force at 0.5 MPa. The rear stopper allows you to trim up to 20 mm of travel, creating an exact 80-100 mm usable stroke window for precise end-positioning.
Unlike the fixed rubber bumper on an MBLJ, the screw-tunable cushioning here decelerates heavier loads at stroke ends, protecting the end covers. The riveted aluminum barrel keeps the body light for tight spaces, while the Ø10 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear. The built-in -S magnet enables position detection via CMSG reed or DMSG/EMSG electronic switches.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 80–100 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 300 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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 MBLCJ25X100-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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 MBLCJ25X100-20S Is Used
PCB Edge Connector Seating
Uses the 80-100 mm adjustable stroke window to drive a 245 N push, seating fragile PCB edge connectors accurately while the air cushion prevents impact damage on the test jig.
Small Pump Valve Tunning
Tunes the end-of-stroke deceleration for a fluid dispensing pump valve actuator, using the 0.5 MPa force to open the valve while avoiding hydraulic shock at the 100 mm stroke end.
Light Sheet Metal Bending
Executes a 206 N pull stroke on a small sheet metal brake, using the built-in magnet to confirm retraction and the adjustable stop to dial in the exact 80 mm bend depth.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20S the Right Cylinder?
Choose this 25 mm bore if your application needs 245 N push at 0.5 MPa with controlled end-of-stroke deceleration. If you require less force, step down to the 20 mm bore (157 N push); for heavier loads, step up to the 32 mm bore (402 N push). Select this MBLCJ over an MBLJ when fixed bumpers cannot absorb the kinetic energy of your 100 mm stroke moves, or over an MBLC when you need that 80-100 mm rear travel trim.
Remember the rear adjuster is a travel stop, not a load-holding lock; the rod drifts without live air pressure. Mounting is limited to Basic, FA flange, or LB foot options, with no SDB pivot or back-cover configurations available. For a direct replacement, match the 25 mm bore, 100 mm stroke, 20 mm adjust code, G1/8 port, PT thread, and the -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 MBLCJ25X100-20S FAQ
At 0.5 MPa, this 25 mm bore cylinder provides 245 N push and 206 N pull force. At 0.7 MPa, the push force increases to 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa.
The rear stroke adjuster is a mechanical travel stop that trims the stroke window down to 80-100 mm, but it does not lock or hold the load in place. The adjustable air cushion is a separate screw-tunable valve that regulates end-of-stroke deceleration to protect the end covers from impact.
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
Request a Quote for Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.