This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X175-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X175-20 in place of this model. 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 MALJ40X175-20
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-20 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 155 to 175 mm. This model is discontinued — the drop-in replacement is the MBLJ40X175-20.
- BoreØ40 mm
- Stroke175 mm
- Adjust window155–175 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X175-20
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-20
The AirTAC MALJ40X175-20 is a discontinued double-acting single-rod mini cylinder with a rear adjustable stroke stopper. The exact drop-in replacement is the MBLJ40X175-20. This 40mm bore unit uses a G1/4 port and a 16mm hard-chrome rod. The 20mm adjust code creates a usable stroke window of 155-175mm. It delivers 628N push and 528N pull at 0.5MPa, peaking at 128kgf at 1.0MPa.
The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. End impact is softened by a fixed rubber bumper, as MALJ has no adjustable air cushion. This SKU lacks a magnet (-S), so it cannot accept a position sensor. For your upgrade, the MBLJ40X175-20 retains the same bore, stroke, and adjust code, but moves from threaded covers to a riveted rolling-packed body. If you later add a magnet to the MBLJ, it uses CMSG/DMSG/EMSG switches rather than the older CS1-M/DS1-M family.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-20 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X175-20 |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Adjustable window | 155 – 175 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 MBLJ40X175-20 carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Single-rod force, same as a standard MAL of this bore. The MBLJ40X175-20 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | 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 MALJ40 Adjustable Mini Cylinder MALJ40X175-20 Is Used
Printed Circuit Board Tester
Dial the 155-175mm reach to seat test probes precisely on PCB panels without swapping physical stopper blocks on the test fixture.
Bottle Capping Head
Tunes the 16mm rod extension on a capping spindle, applying 628N of push force at 0.5MPa to seal containers before the thread rolls back.
Pallet Stack Height Stop
Trims the end-of-stroke position by up to 20mm to adapt to varying pallet load heights, preventing over-compression of goods.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-20 with MBLJ40X175-20
To replace the MALJ40X175-20, order the drop-in MBLJ40X175-20. Confirm the 40mm bore, 175mm stroke, 20mm adjust code, G1/4 port, PT thread, and FA/LB mounting. The MALJ has no back-cover or SDB option. Because this SKU lacks a magnet, it cannot take a sensor; the MBLJ upgrade supports CMSG/DMSG/EMSG switches if you add the -S option. If you need less force, the 32mm bore offers 402N push at 0.5MPa; if you need more, 40mm is the largest MALJ size available. The adjuster is a travel stop, not a lock. At 175mm stroke, watch for rod-bending under heavy side loads.
Upgrade checklist
- ✓ Order the MBLJ40X175-20 (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 MBLJ40X175-20 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X175-20 FAQ
Yes, the MALJ40X175-20 is discontinued. The exact drop-in replacement is the MBLJ40X175-20, which matches the 40mm bore, 175mm stroke, 20mm adjust code, G1/4 port, and FA/LB mounting. The MBLJ upgrades the body from threaded covers to a riveted rolling-packed design.
The usable stroke window is 155-175mm, trimmed via a 20mm rear screw. The 40mm bore provides 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum of 128kgf at 1.0MPa. The adjuster is a travel stop, not a lock.
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The MBLJ40X175-20 replaces this model 1:1.
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