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-MBLJ40X125-30S, 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-MALJ40X125-30S
The AirTAC Airtac B01-MALJ Special Application Cylinder B01-MALJ40X125-30S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from 95 to 125 mm. This model is discontinued — the drop-in replacement is the B01-MBLJ40X125-30S.
- BoreØ40 mm
- Stroke125 mm
- Adjust window95–125 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → B01-MBLJ40X125-30S
- 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-MALJ40X125-30S
The B01-MALJ40X125-30S is a discontinued double-acting mini cylinder. The B01- prefix marks this as an AirTAC application-dedicated (customer-specified) variant of the base MALJ40X125-30S, mechanically identical to the standard unit. It features a 40mm bore, a 125mm stroke, and a 30mm rear adjuster, giving a usable end-position window of 95-125mm. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X125-30S, matching the bore, stroke, force, and G1/4 port.
The rear screw lets you fine-tune the reach without external stops. Remember the adjuster is a travel stop, not a lock; it cannot hold a load without live air. This unit has a fixed rubber bumper, not an adjustable air cushion. The MALJ uses threaded covers and a CS1-M/DS1-M magnet, whereas the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. There is no back-cover or SDB option; mounting is FA or LB only.
Airtac B01-MALJ Special Application Cylinder B01-MALJ40X125-30S Technical Specifications
| Model | Airtac B01-MALJ Special Application Cylinder B01-MALJ40X125-30S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | B01-MBLJ40X125-30S |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Adjustable window | 95 – 125 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-MBLJ40X125-30S 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-MBLJ40X125-30S matches these values.
Model Code: Airtac B01-MALJ Special Application Cylinder B01-MALJ40X125-30S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 95–125 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-MALJ40X125-30S Is Used
Press-fit pinning stations
Dial in the 95-125mm reach on an electronics connector line to seat pins precisely without re machining the headstock.
Thermoforming mold stops
Set a precise 628N push at 0.5MPa to form plastic trays, tweaking the 30mm adjuster to alter draw depth on the fly.
Woodworking edge banding
Trim the cylinder end position to clamp varying panel widths securely against the fence using the fixed rubber bumper.
Replacing the Airtac B01-MALJ Special Application Cylinder B01-MALJ40X125-30S with B01-MBLJ40X125-30S
To replace this B01-MALJ40X125-30S with the MBLJ40X125-30S, confirm the 40mm bore, 125mm stroke, 30mm adjust code, G1/4 PT port, and FA/LB mounting. Your CS1-M/DS1-M sensors must change to CMSG/DMSG/EMSG switches. The adjuster sets the 95-125mm end position but is a stop, not a lock; use an external lock for held loads. If sizing differently, step down to a 32mm bore for 402N push at 0.5MPa, or step up if you exceed the 128kgf max at 1.0MPa. At 125mm stroke, minimize side-load to prevent rod bending.
Upgrade checklist
- ✓ Order the B01-MBLJ40X125-30S (same bore/stroke/adjust)
- ✓ Same 95–125 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-MBLJ40X125-30S instead of this discontinued model.
Airtac B01-MALJ Special Application Cylinder B01-MALJ40X125-30S FAQ
Yes, it is discontinued. The exact drop-in replacement is the MBLJ40X125-30S, which matches the 40mm bore, 125mm stroke, 30mm adjuster, and G1/4 port. The B01- prefix simply denotes an application-dedicated build of the standard MALJ. You will need to upgrade your sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The usable stroke window is 95-125mm via the 30mm rear adjuster. 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.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The B01-MBLJ40X125-30S 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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