This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X500-40-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X500-40-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 MALJ40X500-40-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-40-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 460 to 500 mm. This model is discontinued — the drop-in replacement is the MBLJ40X500-40-S.
- BoreØ40 mm
- Stroke500 mm
- Adjust window460–500 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X500-40-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-40-S
The AirTAC MALJ40X500-40-S is a discontinued double-acting, single-rod adjustable-stroke mini cylinder. It features a 40mm bore, 500mm stroke, and a rear screw stopper that lets you trim up to 40mm, creating a usable stroke window of 460-500mm. It delivers 628N push and 528N pull force at 0.5 MPa, with a G1/4 port and M12x1.25 rod thread. The exact drop-in replacement is the MBLJ40X500-40-S, matching the bore, stroke, adjust code, and force.
This -S SKU includes a magnet for CS1-M/DS1-M switches; the MBLJ upgrade shifts to CMSG/DMSG/EMSG sensors. The MALJ uses threaded covers, while the MBLJ uses a riveted rolling-packed body. The rear adjuster is a travel stop, not a lock, and end impact is softened by a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-40-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-40-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X500-40-S |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Adjustable window | 460 – 500 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 MBLJ40X500-40-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 MBLJ40X500-40-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-40-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×500 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 460–500 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 MALJ40X500-40-S Is Used
Automated Wood Router
Dials the 460-500mm reach to set router depth precisely without swapping the cylinder, using the 880N push at 0.7 MPa to hold the carriage.
Long-Stroke Pallet Pusher
Trims the end position by 40mm to clear a conveyor side-guide, using the 628N push force to index pallets without overtravel.
Carton Flap Folder
Fine-tunes the 500mm tuck stroke by 40mm to match varying box lengths, preventing hard mechanical crashes via the fixed rubber bumper.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-40-S with MBLJ40X500-40-S
To replace this MALJ40X500-40-S, order the exact drop-in MBLJ40X500-40-S. Confirm the 40mm bore, 500mm stroke, 40mm adjust code, G1/4 port, PT threads, and FA/LB mounting (no back cover or SDB). The magnet sensor family changes from CS1-M/DS1-M to CMSG/DMSG/EMSG. The adjuster sets end position but does not hold load without live air; use an external lock for holding.
For sizing flexibility, the next size down is the 32mm bore (402N push at 0.5 MPa), and the next size up requires a larger ISO cylinder. At 500mm, this non-standard stroke is at the maximum limit for this bore. On long strokes like this, prevent rod bending and seal wear by minimizing side loads and guiding the load rigidly.
Upgrade checklist
- ✓ Order the MBLJ40X500-40-S (same bore/stroke/adjust)
- ✓ Same 460–500 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 MBLJ40X500-40-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-40-S FAQ
Yes, the MALJ40X500-40-S is discontinued. The exact drop-in replacement is the MBLJ40X500-40-S, matching the 40mm bore, 500mm stroke, 40mm adjust code, G1/4 port, and 128 kgf max force. The MBLJ upgrades the body to a riveted rolling-packed design and uses CMSG/DMSG/EMSG sensors instead of the older CS1-M/DS1-M switches.
The 40mm adjuster lets you trim the 500mm stroke, giving a usable window of 460-500mm. The full force set is: 628N push and 528N pull at 0.5 MPa, 880N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The adjuster is a travel stop, not a lock.
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Drop-in Upgrade
The MBLJ40X500-40-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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