This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X175-20S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The MBLJ replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 155 to 175 mm. This model is discontinued — the direct replacement is the MBLJ25X175-20-S.
- BoreØ25 mm
- Stroke175 mm
- Adjust window155–175 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X175-20-S
- 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S
The AirTAC MALJ25X175-20-S is a discontinued double-acting double-rod mini cylinder with a rear adjustable stroke. Its 20mm rear stopper creates a usable end-position window of 155-175mm. The direct replacement is the MBLJ25X175-20-S, matching bore, stroke, adjust code, port, and mounting.
The adjuster is a travel stop, not a lock; it cannot hold a load without live air. This -S magnet SKU uses older CS1-M/DS1-M switches, while the MBLJ upgrade uses CMSG/DMSG/EMSG sensors and a riveted rolling-packed body instead of threaded covers. Both share a fixed rubber bumper for end-impact absorption.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X175-20-S |
| Bore size | Ø25 mm |
| Stroke | 175 mm |
| Adjustable window | 155 – 175 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.1 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 300 mm |
The rear adjuster is a travel stop, not a lock — it sets the end position but does not hold the load without live air. No back-cover code and no SDB on adjustable-stroke. The MBLJ25X175-20-S carries the same ratings.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 206 N | 206 N |
| 0.7 MPa | 289 N | — |
| Max (@1.0 MPa) | 42 kgf | |
MALJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod MAL push of the same bore. The MBLJ25X175-20-S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×175 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 155–175 mm window. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBLJ uses CMSG/DMSG/EMSG). |
Replacement: MALJ → MBLJ. No back-cover (CA/U/CM) and no SDB. Mounting: FA / LB.
Where the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S Is Used
Carton Flap Plunger
Fine-tune the reach of a carton sealing plunger. The rear stopper lets you shift the 175mm end position by 20mm to match varying box heights without adding external spacers.
Textile Guide Tensioner
Adjust the stroke on a fabric edge-guide mechanism. The 206N pull force maintains steady tension on the web, while the stopper allows precise 155-175mm reach calibration.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S with MBLJ25X175-20-S
To replace this MALJ25X175-20-S, order the MBLJ25X175-20-S direct. Confirm the Ø25mm bore, 175mm stroke, 20mm adjust code, G1/8 port, M10x1.25 rod thread, and FA/LB mounting (no back cover or SDB). Remember the -S magnet requires changing CS1-M/DS1-M switches to CMSG/DMSG/EMSG on the new cylinder. The adjuster sets end position but does not lock the load.
Since the 175mm stroke is relatively long for a mini cylinder, ensure adequate guiding to prevent rod bending under side loads.
Upgrade checklist
- ✓ Order the MBLJ25X175-20-S (same bore/stroke/adjust)
- ✓ Same 155–175 mm adjustable window
- ✓ Adjuster is a stop, not a lock
- ✓ No back cover / SDB — plan an FA/LB mount
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.1 – 1.0 MPa operating pressure.
- check The rear adjuster sets the end position — it is not a load lock.
- check No back-cover / SDB on adjustable-stroke — use FA / LB.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the MBLJ25X175-20-S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-20-S FAQ
Yes, the MALJ25X175-20-S is discontinued. The direct replacement is the MBLJ25X175-20-S, which matches the 25mm bore, 175mm stroke, 20mm adjust code, G1/8 port, and FA/LB mounting. You must upgrade your sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 20mm adjuster is a travel stop that lets you trim the end position, creating a usable 155-175mm window. It does not lock the load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X175-20-S replaces this model 1:1.
Fast Dispatch
MBLJ replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended AirTAC MBLJ Replacements
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