This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the drop-in replacement B01-MBLJ40X75-50S, 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 B01-MALJ Special Application Cylinder B01-MALJ40X75-50S
The AirTAC Airtac B01-MALJ Special Application Cylinder B01-MALJ40X75-50S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 50 mm, giving a usable end-position window from 25 to 75 mm. This model is discontinued — the drop-in replacement is the B01-MBLJ40X75-50S.
- BoreØ40 mm
- Stroke75 mm
- Adjust window25–75 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → B01-MBLJ40X75-50S
- 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 B01-MALJ Special Application Cylinder B01-MALJ40X75-50S
The B01-MALJ40X75-50S is a discontinued AirTAC double-acting, single-rod mini cylinder. The B01- prefix marks this as an application-dedicated (customer-specified) variant of the base MALJ40X75-50S, meaning it is mechanically identical to the standard catalog model. It features a 40mm bore, 75mm stroke, and a rear screw stopper that allows you to trim up to 50mm of travel, creating a usable end-position window of 25-75mm. Delivering 628 N push and 528 N pull force at 0.5 MPa, it uses a fixed rubber bumper to soften end impact.
The exact drop-in replacement is the MBLJ40X75-50S, matching the bore, stroke, adjust code, and G1/4 port. When upgrading, note two construction changes: the MALJ uses threaded covers and a CS1-M / DS1-M magnet sensor system, while the MBLJ uses a riveted rolling-packed body and CMSG / DMSG / EMSG sensors. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air pressure.
Airtac B01-MALJ Special Application Cylinder B01-MALJ40X75-50S Technical Specifications
| Model | Airtac B01-MALJ Special Application Cylinder B01-MALJ40X75-50S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | B01-MBLJ40X75-50S |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Adjustable window | 25 – 75 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 B01-MBLJ40X75-50S 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 B01-MBLJ40X75-50S matches these values.
Model Code: Airtac B01-MALJ Special Application Cylinder B01-MALJ40X75-50S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×75 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 25–75 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 B01-MALJ Special Application Cylinder B01-MALJ40X75-50S Is Used
Press-fit pin insertion
Dial in the 25-75mm window to seat connector pins precisely without bottoming out, using the 628 N push force at 0.5 MPa to overcome insertion resistance.
PCB depaneling stop
Set a repeatable end position to support printed circuit boards during v-groove breaking, relying on the fixed rubber bumper to prevent shock damage to delicate traces.
Adjustable clamping depth
Fine-tune reach on a woodworking clamp fixture without machining new hard stops, adjusting the rear screw to accommodate varying material thicknesses.
Replacing the Airtac B01-MALJ Special Application Cylinder B01-MALJ40X75-50S with B01-MBLJ40X75-50S
To replace the B01-MALJ40X75-50S, order the MBLJ40X75-50S. Confirm the 40mm bore, 75mm stroke, 50mm adjust code, PT G1/4 port, and M12x1.25 rod-end thread. Mounting is limited to Basic, FA, or LB; there is no back-cover or SDB option. Because this SKU has the -S magnet, you must upgrade your sensors from the old CS1-M / DS1-M switches to the MBLJ's CMSG / DMSG / EMSG family. Remember the adjuster is a stop, not a lock, so add an external lock for held loads.
When sizing, you can step down to a 32mm bore for lighter force (402 N push at 0.5 MPa) or step up to a 40mm bore (this size, 628 N push) if you need maximum push within the mini range. The 40mm bore is the largest available in this series, offering 880 N push at 0.7 MPa and a 128 kgf maximum at 1.0 MPa.
Upgrade checklist
- ✓ Order the B01-MBLJ40X75-50S (same bore/stroke/adjust)
- ✓ Same 25–75 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 B01-MBLJ40X75-50S instead of this discontinued model.
Airtac B01-MALJ Special Application Cylinder B01-MALJ40X75-50S FAQ
Yes, the B01-MALJ40X75-50S is discontinued. The exact drop-in replacement is the MBLJ40X75-50S, which matches the 40mm bore, 75mm stroke, 50mm adjust code, and G1/4 port. The B01- prefix simply denotes an application-dedicated variant, so the replacement uses the standard MBLJ line. You will need to swap your CS1-M / DS1-M sensors to the CMSG / DMSG / EMSG family for the new riveted body.
The 40mm bore provides 628 N push and 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The 50mm adjust code lets you trim the 75mm stroke back, giving a usable end-position window of 25-75mm. The adjuster acts only as a travel stop and does not hold the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The B01-MBLJ40X75-50S 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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