Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X200-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X200-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 200mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 180–200mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke200 mm
- Adjustable180–200 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 MBLCJ25X200-20S
The AirTAC MBLCJ25X200-20S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 245 N of push force at 0.5 MPa. The rear stopper allows you to trim up to 20 mm of travel, creating a usable stroke window of 180 to 200 mm. This specific travel range is well-suited for intermediate routing tasks that need exact end-of-stroke positioning.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air cushioning to decelerate loads smoothly at the end caps, protecting the end covers during faster cycling. The riveted rolling-packed aluminum barrel and heterogeneous two-way grease-retaining piston seal ensure stable friction. Fitted with a built-in magnet (-S), it supports CMSG reed and DMSG/EMSG electronic sensor switches for rod position detection. The Ø10 mm hard-chrome plated carbon-steel rod requires an external guide over this 200 mm length to prevent side-load bending.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X200-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X200-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 180–200 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 MBLCJ25X200-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×200 | 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 MBLCJ25X200-20S Is Used
PCB Routing Diverter
Uses the 180-200 mm stroke window to actuate a routing gate on a printed circuit board conveyor, relying on the 245 N push force to positively shift the gate arm.
Textile Loom Tensioner
Adjusts the end-of-stroke position by 20 mm to fine-tune yarn tensioning arms, while the tunable air cushion prevents sudden snaps that would break delicate threads.
Diagnostic Cartridge Ejector
Pushes medical test cartridges out of a processing tray at high speed, using the adjustable end cushioning to softly decelerate the 200 mm travel and prevent fluid splashing.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X200-20S the Right Cylinder?
When sizing this 25 mm bore actuator, stepping down to a 20 mm bore reduces thrust to 157 N at 0.5 MPa, while stepping up to a 32 mm bore increases it to 402 N. Choose the MBLCJ over the MBLJ when your moving mass requires tunable end-of-stroke deceleration rather than a fixed bumper impact, or the MBLC if you need fixed stroke without a rear adjuster. The rear adjuster sets the travel end point, and the cushion only decelerates; neither component locks or holds the load, so external locking is required for static position holding.
Mounting is limited to Basic, FA (flange), or LB (foot) as there is no back-cover or SDB pivot option for this series. The exact replacement match is bore 25, stroke 200, adjust 20, port G1/8, rod-end thread M10x1.25, PT thread form, and an integrated magnet. Because the stroke is 200 mm, the 10 mm diameter rod is susceptible to bending under lateral forces, so an external guide rail is strongly recommended to maintain alignment.
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 MBLCJ25X200-20S FAQ
At 0.5 MPa, the push force is 245 N and the pull force is 206 N. At 0.7 MPa, the push force increases to 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa. The operating pressure range is 0.15 to 1.0 MPa, with a speed range of 30 to 800 mm/s.
The rear stroke adjuster physically stops the piston, allowing you to trim the travel by 20 mm for a usable window of 180 to 200 mm. The adjustable air cushion at both ends uses a screw to tune the exhaust bleed rate, decelerating the load before it hits the stop. Neither the cushion nor the stopper acts as a mechanical lock to hold the load in place.
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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