
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X200-40S 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 40mm for a usable window of 160–200mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ25X200-40S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It integrates a built-in magnet for position sensing. With a 25mm bore, it delivers 245N push and 206N pull force at 0.5 MPa. The rear adjuster trims up to 40mm of travel, creating a usable stroke window of 160-200mm. This extended travel suits automated packaging feeds and long-travel pressing tasks.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air cushioning to decelerate loads smoothly at the stroke extremes, protecting the end covers during high-speed operations. The riveted rolling-packed aluminum barrel and heterogeneous two-way grease-retaining piston seal minimize friction and wear. The Ø10mm carbon-steel rod features 20µm hard-chrome plating to resist corrosion and scoring in demanding industrial environments.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X200-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 160–200 mm (trim 40 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.
| 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.
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×200 | Nominal stroke length in mm. |
| -40 | 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).
Handles the 160-200mm adjusted travel needed to erect and fold corrugated carton blanks, using the 245N push force and tunable cushion to prevent hard stops at 800mm/s.
Employs the built-in magnet and CMSG reed switch to verify yarn beam positioning, while the adjustable air cushion protects the end covers during rapid tensioning reversals.
Moves populated PCB panels along a 200mm conveyor transfer path, relying on the 206N pull force and PT-threaded G1/8 port for reliable, compact double-acting actuation.
If you need less force, step down to the 20mm bore (157N push @0.5MPa); if your application requires heavier pushing or lifting, step up to the 32mm bore (402N push @0.5MPa). Choose this MBLCJ over the MBLJ when your machine cycle times demand tunable end-of-stroke deceleration rather than a fixed bumper impact, or choose MBLC if you need fixed standard stroke lengths. Remember that the rear adjuster is a travel stop, not a lock; it sets the end position but does not hold the load. The adjustable cushion only controls deceleration and will not prevent rod drift without live air pressure. Mounting is limited to Basic, FA (flange), or LB (foot) styles as there is no back-cover or SDB pivot option. For an exact replacement, match the 25mm bore, 200mm stroke, 40mm adjust code, G1/8 port, PT thread, and the -S magnet specification. Because the stroke is 200mm on a small Ø10mm rod, use an external guide to prevent side-load bending.
Quick checklist
This 25mm bore cylinder provides 245N push and 206N pull at 0.5 MPa, 343N push at 0.7 MPa, and a maximum theoretical force of 50 kgf at 1.0 MPa. It operates on filtered 40µm air at 0.15-1.0 MPa with a speed range of 30-800mm/s.
The rear stroke adjuster allows you to trim up to 40mm of travel, giving a usable stroke window of 160-200mm. The adjustable air cushion at both ends uses a screw to tune end-of-stroke deceleration for heavier or faster loads. The adjuster is a travel stop, not a lock; neither it nor the cushion will hold the load without live air pressure.
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