This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X250-100, 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 MALJ40 Adjustable Mini Cylinder MALJ40X250-100
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-100 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 100 mm, giving a usable end-position window from 150 to 250 mm. This model is discontinued — the direct replacement is the MBLJ40X250-100.
- BoreØ40 mm
- Stroke250 mm
- Adjust window150–250 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X250-100
- 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 MALJ40 Adjustable Mini Cylinder MALJ40X250-100
The AirTAC MALJ40X250-100 is a discontinued double-acting double-rod cylinder with a rear adjustable stop. It trims up to 100 mm at the rear, giving a usable stroke window of 150-250 mm. The direct replacement is the MBLJ40X250-100, matching the bore, stroke, adjust code, G1/4 port and force.
This SKU has no magnet, so it cannot take a position sensor. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. Upgrading to the MBLJ changes the switch family from CS1-M/DS1-M to CMSG/DMSG/EMSG and swaps the threaded covers for a riveted rolling-packed body. End impact is softened by a fixed rubber bumper, as there is no air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-100 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-100 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X250-100 |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Adjustable window | 150 – 250 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 500 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 MBLJ40X250-100 carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 MBLJ40X250-100 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-100
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×250 | Nominal stroke length in mm. |
| -100 | Adjustable amount: trim the end to a 150–250 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 MALJ40 Adjustable Mini Cylinder MALJ40X250-100 Is Used
Aluminum Extrusion Saw Stop
Sets a precise variable cut length on a saw line by acting as a backstop, easily trimming up to 100 mm for different profile batches.
Pallet Wrapper Film Carriage
Adjusts the film carriage depth on packaging machinery to accommodate varying pallet widths, relying on the 40 mm bore for stable extension.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-100 with MBLJ40X250-100
To replace this MALJ40X250-100 with the MBLJ40X250-100, confirm the 40 mm bore, 250 mm stroke, 100 mm adjust code, G1/4 port, PT thread and FA/LB mounting. There is no back cover or SDB option. Because this SKU lacks the -S magnet, it cannot accept a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches. The adjuster is a stop, not a lock, so add an external lock for held loads.
At 250 mm stroke, minimize side loads to prevent rod bending, as the fixed rubber bumper cannot absorb lateral forces.
Upgrade checklist
- ✓ Order the MBLJ40X250-100 (same bore/stroke/adjust)
- ✓ Same 150–250 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 MBLJ40X250-100 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-100 FAQ
Yes, the MALJ40X250-100 is discontinued. The direct replacement is the MBLJ40X250-100, which matches the 40 mm bore, 250 mm stroke, 100 mm adjust code, G1/4 port and mounting. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
The 100 mm adjust code lets you trim the rear position, creating a usable stroke window of 150-250 mm. This adjuster is a travel stop, not a lock, and cannot hold a load without air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X250-100 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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