This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X25-20, 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 MALJ25X25-20
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X25-20 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 5 to 25 mm. This model is discontinued — the direct replacement is the MBLJ25X25-20.
- BoreØ25 mm
- Stroke25 mm
- Adjust window5–25 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X25-20
- 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 MALJ25X25-20
The AirTAC MALJ25X25-20 is a discontinued double-acting double-rod mini cylinder with a rear adjustable stroke stop. It trims up to 20 mm at the rear, yielding a usable end-position window of 5-25 mm. The direct replacement is the MBLJ25X25-20, matching the 25 mm stroke, 20 mm adjust code, G1/8 port, and 50 kgf max force.
This SKU lacks a magnet (-S), so it cannot take a position sensor. The adjuster is a travel stop, not a lock; it sets the end position but does not hold load without live air. Fixed rubber bumpers soften end impact. The MALJ uses threaded covers, while the MBLJ upgrade features a riveted rolling-packed body.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X25-20 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X25-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X25-20 |
| Bore size | Ø25 mm |
| Stroke | 25 mm |
| Adjustable window | 5 – 25 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 MBLJ25X25-20 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 MBLJ25X25-20 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X25-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×25 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 5–25 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 MALJ25X25-20 Is Used
Bottle Capper Height Set
Fine-tune the capping head on a rotary bottle capper without adding external shims, trimming the stroke to match varying cap heights.
Small Part Pin Press
Drive dowel pins into aluminum jigs by tuning the rear stopper to prevent bottoming out, relying on the 206 N pull force for retraction.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X25-20 with MBLJ25X25-20
Replace this MALJ25X25-20 with the exact direct replacement MBLJ25X25-20. Confirm the 25 mm bore, 25 mm stroke, 20 mm adjust code, PT G1/8 port, and FA/LB mounting (no back cover or SDB). Because this SKU lacks a -S magnet, it cannot accept a sensor; the MBLJ-S upgrade uses CMSG/DMSG/EMSG switches. The rear adjuster is a travel stop, not a lock.
Use the 25 mm bore if 245 N is your target.
Upgrade checklist
- ✓ Order the MBLJ25X25-20 (same bore/stroke/adjust)
- ✓ Same 5–25 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 MBLJ25X25-20 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X25-20 FAQ
Yes, the MALJ25X25-20 is discontinued. The direct replacement is the MBLJ25X25-20, matching the 25 mm bore, 25 mm stroke, 20 mm adjust code, G1/8 port, and 50 kgf max force. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
The 20 mm adjust code lets you trim the rear position up to 20 mm, creating a usable 5-25 mm stroke window. The adjuster is a travel stop, not a lock; it cannot hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X25-20 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 MALJ25X25-20 → MBLJ25X25-20)
Tell us the quantity and destination — we quote the direct MBLJ25X25-20 replacement with price, stock and lead time, usually within 7-8 hours.