This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X70-20S, 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 MALJ25X70-20S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X70-20S 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 50 to 70 mm. This model is discontinued — the direct replacement is the MBLJ25X70-20S.
- BoreØ25 mm
- Stroke70 mm
- Adjust window50–70 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X70-20S
- 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 MALJ25X70-20S
The AirTAC MALJ25X70-20S is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke stopper. It features a 25mm bore, a 70mm standard stroke, and a 20mm adjust code, giving a usable end-position window of 50-70mm. The direct replacement is the MBLJ25X70-20S, matching the bore, stroke, adjust code, G1/8 port, and mounting.
This -S model includes a magnet for CS1-M or DS1-M switches, while the MBLJ upgrade uses CMSG, DMSG, or EMSG sensors. The MALJ uses threaded covers and a fixed rubber bumper to absorb end impacts. The rear adjuster is a travel stop for fine-tuning reach, not a lock; it cannot hold a load without live air pressure. Mounting is FA or LB only, with no back-cover or SDB options.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X70-20S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X70-20S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X70-20S |
| Bore size | Ø25 mm |
| Stroke | 70 mm |
| Adjustable window | 50 – 70 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 MBLJ25X70-20S 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 MBLJ25X70-20S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X70-20S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×70 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 50–70 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 MALJ25X70-20S Is Used
Wire Stripping Gauge
Adjust the rear stopper to 55mm to act as a mechanical depth gauge for an automated wire stripping clamp, preventing the 25mm rod from tearing copper strands during retraction.
Carton Flap Folder
Fine-tune the retract position on a packaging line flap folder, trimming 10mm off the 70mm stroke to perfectly align minor flaps before tape sealing.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X70-20S with MBLJ25X70-20S
To replace the MALJ25X70-20S, order the direct replacement MBLJ25X70-20S. Confirm the 25mm bore, 70mm stroke, 20mm adjust code, PT G1/8 port, and M10x1.25 rod-end thread. Keep your FA or LB mounting; no back-cover or SDB code is used. The -S magnet means your old CS1-M/DS1-M switches must change to CMSG/DMSG/EMSG on the new riveted-body MBLJ. The adjuster is a stop, not a lock.
At 70mm stroke, keep the load guided to prevent rod bending and side-load wear.
Upgrade checklist
- ✓ Order the MBLJ25X70-20S (same bore/stroke/adjust)
- ✓ Same 50–70 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 MBLJ25X70-20S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X70-20S FAQ
Yes, the MALJ25X70-20S is discontinued. The direct replacement is the MBLJ25X70-20S, matching the 25mm bore, 70mm stroke, 20mm adjust code, G1/8 port, and mounting. The MBLJ upgrades the body to a riveted rolling pack and changes the -S magnet switches from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 20mm adjust code lets you trim the rear end position, giving a usable stroke window of 50-70mm. The adjuster is a travel stop, not a lock, and cannot hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X70-20S 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
Request a Quote (Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X70-20S → MBLJ25X70-20S)
Tell us the quantity and destination — we quote the direct MBLJ25X70-20S replacement with price, stock and lead time, usually within 7-8 hours.