Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-100
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-100 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 250mm nominal stroke and a rear adjustable-stroke stopper — trim up to 100mm for a usable window of 150–250mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke250 mm
- Adjustable150–250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-100
The AirTAC MBLCJ25X250-100 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion 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 100 mm of travel, providing a usable end-position window of 150 to 250 mm. This makes it highly effective for processes requiring exacting terminal positioning without redesigning the entire mounting layout.
This SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors. To manage kinetic energy from heavier fast moves, the screw-tunable end cushions decelerate the rod to protect the end covers, a distinct advantage over the fixed rubber bumper found in the MBLJ series. The riveted aluminum barrel and 20 μm hard-chrome plated carbon-steel rod ensure durability, while the grease-retaining piston seal maintains lubrication over a 30-800 mm/s speed range.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-100 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-100 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 250 mm |
| Adjustable window | 150–250 mm (trim 100 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 MBLCJ25X250-100
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×250 | Nominal stroke length in mm. |
| -100 | 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 MBLCJ25X250-100 Is Used
PCB Edge Trimming
Drives a routing cutter on an electronics assembly line, using the 150-250 mm stroke window to dial in the exact cut depth and the adjustable cushion to halt the 245 N push force smoothly.
Carton Flap Folding
Actuates a packaging folder mechanism on a filling line, where the rear stopper sets the precise 180 mm fold height and the dual cushions prevent end-cover damage during rapid cycling.
Textile Guide Alignment
Positions a fabric edge-guide roller in a weaving loom, relying on the 250 mm travel to span wide material widths while trimming the rear stroke to match varying fabric tensions.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-100 the Right Cylinder?
Select this 25 mm bore if you need 245 N of push force at 0.5 MPa. If your load is lighter, stepping down to the 20 mm bore yields 157 N push, whereas upgrading to the 32 mm bore provides 402 N push for heavier resistance. This model is preferred over the fixed-stroke MBLC when the 150-250 mm usable stroke window must be fine-tuned on-site, and over the MBLJ when you need adjustable end-deceleration rather than a basic fixed bumper.
When replacing this unit, match the 25 mm bore, 250 mm nominal stroke, 100 mm adjuster, G1/8 port, PT thread, and Basic mounting. Note that MBLCJ mounting is limited to Basic, FA, or LB; there is no SDB pivot or back-cover option. Because the stroke is 250 mm on a small Ø10 rod, external guiding is strongly recommended to prevent rod bending and side-load wear. Finally, neither the travel stopper nor the air cushion acts as a load lock; the rod drifts without live air pressure.
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 MBLCJ25X250-100 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 this 250 mm stroke is a standard length.
This specific SKU lacks a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position switches. The adjustable air cushion only tunes end-of-stroke deceleration, and the rear adjuster is a travel stop; neither holds the load in place without continuous live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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