This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X175-40S, 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 MALJ25X175-40-S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X175-40-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 40 mm, giving a usable end-position window from 135 to 175 mm. This model is discontinued — the direct replacement is the MBLJ25X175-40-S.
- BoreØ25 mm
- Stroke175 mm
- Adjust window135–175 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X175-40-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 MALJ25X175-40-S
The AirTAC MALJ25X175-40-S is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke. It provides a usable travel window of 135-175 mm by trimming up to 40 mm at the rear screw. The direct replacement is the MBLJ25X175-40-S, matching the bore, stroke, G1/8 port, and mounting.
This -S SKU uses a magnet for CS1-M or DS1-M switches; the MBLJ upgrade shifts to CMSG, DMSG, or EMSG sensors. The MALJ features threaded covers, whereas the MBLJ uses a riveted rolling-packed body. The adjuster is a travel stop, not a lock, and end impact relies on a fixed rubber bumper. With no back cover or SDB, mounting is limited to FA or LB.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-40-S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-40-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X175-40-S |
| Bore size | Ø25 mm |
| Stroke | 175 mm |
| Adjustable window | 135 – 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 MBLJ25X175-40-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 MBLJ25X175-40-S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-40-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. |
| -40 | Adjustable amount: trim the end to a 135–175 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 MALJ25X175-40-S Is Used
PCB Depaneling Saw
Dials the blade cut depth from 135 to 175 mm to slice varying panel widths without swapping hardware.
Carton Flap Folder
Adjusts the rear stop to time flap folding strokes perfectly for different box depths on a packaging line.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-40-S with MBLJ25X175-40-S
To replace this MALJ25X175-40-S, order the MBLJ25X175-40-S. Confirm the 25 mm bore, 175 mm stroke, 40 mm adjust code, G1/8 port, PT thread, and FA or LB mounting. The -S magnet requires changing from CS1-M/DS1-M to CMSG/DMSG/EMSG sensors. The adjuster sets the end position but does not hold load without live air.
At 175 mm stroke, use a guide to prevent rod bending and side-load wear.
Upgrade checklist
- ✓ Order the MBLJ25X175-40-S (same bore/stroke/adjust)
- ✓ Same 135–175 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 MBLJ25X175-40-S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X175-40-S FAQ
Yes, it is discontinued. The direct replacement is the MBLJ25X175-40-S, matching the 25 mm bore, 175 mm stroke, 40 mm adjust code, and G1/8 port. You will need CMSG, DMSG, or EMSG sensors instead of the older CS1-M or DS1-M switches.
The usable stroke window is 135-175 mm via the 40 mm rear stopper. The maximum force is 50 kgf at 1.0 MPa. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X175-40-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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