This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X250-40-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X250-40-S 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 MALJ40X250-40-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-40-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 210 to 250 mm. This model is discontinued — the drop-in replacement is the MBLJ40X250-40-S.
- BoreØ40 mm
- Stroke250 mm
- Adjust window210–250 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X250-40-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-40-S
The AirTAC MALJ40X250-40-S is a discontinued 40mm bore, double-acting single-rod cylinder with a rear adjustable-stroke stopper. It provides a usable stroke window of 210-250mm, letting you dial in the end position without adding external stops. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X250-40-S, matching the bore, stroke, adjust code, G1/4 port, and mounting.
This SKU includes a magnet (-S) for CS1-M/DS1-M switches; the MBLJ upgrade uses CMSG/DMSG/EMSG sensors. The MALJ uses threaded covers, while the MBLJ features a riveted rolling-packed body. The adjuster is a travel stop, not a lock—it cannot hold a load without live air. A fixed rubber bumper softens end impact, but this is not an adjustable air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-40-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-40-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X250-40-S |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Adjustable window | 210 – 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 MBLJ40X250-40-S 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 MBLJ40X250-40-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-40-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×250 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 210–250 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 MALJ40X250-40-S Is Used
PCB Depaneling Saw Feed
Dial the 210-250mm window to set the exact blade plunge depth on a depaneling router, using the 628N push force to maintain steady feed without overtravel.
Bending Press Depth Stop
Trim the return position up to 40mm to fine-tune the stroke for a sheet metal bending press, ensuring the 880N at 0.7MPa hits the exact form depth per die.
Carton Flap Folder
Adjust the end position on the fly for different carton widths, using the fixed rubber bumper to absorb the impact of the folding arm at the end of cycle.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-40-S with MBLJ40X250-40-S
To replace this MALJ40X250-40-S, order the exact drop-in MBLJ40X250-40-S. Confirm the 40mm bore, 250mm stroke, 40mm adjust code, G1/4 port, PT thread, and FA/LB mounting (no back cover or SDB). The -S magnet swaps from CS1-M/DS1-M to CMSG/DMSG/EMSG sensors. The adjuster sets the end position but does not hold load without air; use an external lock for holding.
Size both ways: step down to a 32mm bore for 402N push at 0.5MPa, or up if you need more force. At 250mm stroke, watch rod bending on long side-loads—the 16mm rod needs good guiding to prevent wear.
Upgrade checklist
- ✓ Order the MBLJ40X250-40-S (same bore/stroke/adjust)
- ✓ Same 210–250 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 MBLJ40X250-40-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-40-S FAQ
Yes, the MALJ40X250-40-S is discontinued. The exact drop-in replacement is the MBLJ40X250-40-S, which matches the 40mm bore, 250mm stroke, 40mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design and changes the magnet switches from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The -40 adjust code lets you trim up to 40mm at the rear, giving a usable stroke window of 210-250mm. The adjuster is a travel stop, not a lock. Force figures: 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a max of 128kgf at 1.0MPa.
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Drop-in Upgrade
The MBLJ40X250-40-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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