Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X160-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X160-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 160mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 140–160mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke160 mm
- Adjustable140–160 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X160-20S
The AirTAC MBLCJ25X160-20S 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 and 206 N of pull force at 0.5 MPa, making it well-suited for medium-duty positioning tasks over its 160 mm stroke. The built-in magnet enables position detection using CMSG reed or DMSG and EMSG solid-state switches.
This SKU features a 20 mm rear stroke adjuster, providing a usable end-position window of 140 to 160 mm. Unlike the fixed rubber bumper found on the base MBLJ, the screw-tunable air cushion allows you to dial in end-of-stroke deceleration to protect the end covers during faster or heavier moves. The rear adjuster acts purely as a travel stop and does not lock the load in place. The riveted rolling-packed aluminum barrel and 20 μm hard-chrome plated carbon-steel rod ensure reliable service within the 30-800 mm/s speed range.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X160-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X160-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 160 mm |
| Adjustable window | 140–160 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 MBLCJ25X160-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×160 | 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 MBLCJ25X160-20S Is Used
PCB Depaneling Saw Feed
Feeds a circular saw blade to cut routed PCB panels, using the 140-160 mm stroke window to dial in the exact cutting depth while the air cushion absorbs blade contact shock.
Textile Loom Tensioner
Adjusts a fabric guide roller on a weaving loom, using the 245 N push force to maintain yarn tension and the rear stopper to set the maximum travel limit.
Small Parts Ejector
Pushes molded plastic caps out of an injection mold cavity, relying on the tunable cushion to prevent the 10 mm rod from snapping the lightweight components at high speed.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X160-20S the Right Cylinder?
Select this 25 mm bore if your application requires 245 N push at 0.5 MPa over a 160 mm stroke with a 140-160 mm trim window. If you need less force, the 20 mm bore offers 157 N push, or you can step up to the 32 mm bore for 402 N push. Choose the MBLCJ over the MBLJ when your cycle speed demands tunable end-cushioning rather than a fixed bumper, or over the MBLC when you need that rear travel stopper. Remember that the adjuster and cushion decelerate the rod but do not hold the load; you need an external lock for static positioning. Mounting is limited to Basic, FA, or LB styles, as the MBLCJ has no SDB pivot or back-cover options. For a direct replacement, match the 25 mm bore, 160 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 MBLCJ25X160-20S 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 is 343 N, with a theoretical maximum of 50 kgf at 1.0 MPa. The 25 mm bore caps at a 300 mm maximum standard stroke, so the 160 mm stroke on this model is a standard length.
The 20 mm rear stroke adjustment is a mechanical travel stop that lets you set the end position within a 140-160 mm window. The adjustable air cushion is a separate screw-tunable valve that controls end-of-stroke deceleration. Neither of these features locks the load; the cylinder requires live air to hold position.
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