Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 145–175mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke175 mm
- Adjustable145–175 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30S
The AirTAC MBLCJ25X175-30S 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 mid-distance positioning tasks. The integrated magnet allows for CMSG, DMSG, or EMSG sensor switches to track rod position along the 175 mm travel path.
This specific SKU provides a 30 mm rear trim, creating a usable stroke window of 145 to 175 mm. The adjustable air cushion lets you screw-tune the end-of-stroke deceleration to protect the end covers during faster or heavier moves, a distinct advantage over the fixed rubber bumper found on the base MBLJ series. Keep in mind the rear stopper sets the travel end but does not lock the load; the cushion only decelerates. With a Ø10 mm carbon-steel rod and 20 µm hard-chrome plating, this riveted-barrel cylinder handles tight spaces where external ISO 6432 interchangeability is not required.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 145–175 mm (trim 30 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 MBLCJ25X175-30S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×175 | Nominal stroke length in mm. |
| -30 | 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 MBLCJ25X175-30S Is Used
PCB Depaneling Router
Provides the 245 N push force and 145-175 mm travel needed to feed uncut printed circuit board panels through a depaneling router, using the tunable air cushion to soften the stroke end and protect the fixture.
Textile Tensioning Arm
Acts as an adjustable tensioning arm on a textile loom, where the 30 mm rear stroke trim compensates for fabric stretch and the DMSG electronic sensor flags the tension position.
Bottle Sorting Diverter
Drives a lightweight diverter gate on a bottle sorting line, using the 175 mm stroke to clear 150 mm wide product lanes while the adjustable cushion halts the rod smoothly.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30S the Right Cylinder?
If your application needs less force, stepping down to the 20 mm bore yields 157 N of push at 0.5 MPa. For heavier payloads, stepping up to the 32 mm bore provides 402 N of push at 0.5 MPa. Choose the MBLCJ over the MBLJ when your dynamic loads require tunable end-cushioning rather than a fixed bumper, or choose the MBLC if you prefer a fixed standard stroke without the rear adjuster. The overall length equals A + 2 x stroke + adjust, and mounting is limited to Basic, FA, or LB styles (no SDB or back-cover options exist for this body). To match this exact replacement, verify the 25 mm bore, 175 mm stroke, 30 mm adjust code, G1/8 port, PT thread, and the -S magnet. Since the stroke is 175 mm, an external guide is recommended to prevent side-load bending on the 10 mm rod. Neither the rear adjuster nor the air cushion acts as a lock; live air is required to hold position.
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 MBLCJ25X175-30S FAQ
At 0.5 MPa, this 25 mm bore cylinder provides 245 N of push force and 206 N of pull force. At 0.7 MPa, the push force reaches 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
The adjustable stroke is a rear mechanical stopper that trims the travel window down to 145-175 mm, setting the exact end position. The adjustable air cushion is a screw-tunable valve at both ends that controls fluid deceleration to protect the end covers. Neither holds the load in place; they are a travel stop and a decelerator, not a lock.
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