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-MBLJ20X25-20, 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-MALJ20X25-20
The AirTAC Airtac B01-MALJ Special Application Cylinder B01-MALJ20X25-20 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 5 to 25 mm. This model is discontinued — the drop-in replacement is the B01-MBLJ20X25-20.
- BoreØ20 mm
- Stroke25 mm
- Adjust window5–25 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → B01-MBLJ20X25-20
- 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-MALJ20X25-20
The AirTAC B01-MALJ20X25-20 is a discontinued, double-acting single-rod mini cylinder. The leading B01- prefix marks this as an application-dedicated (customer-specified) variant of the base MALJ20X25-20, mechanically identical to the standard catalog model. It features a 20 mm bore, 25 mm stroke, and a 20 mm rear adjuster that creates a usable travel window of 5-25 mm. It delivers 157 N push and 132 N pull at 0.5 MPa.
The exact drop-in replacement is the MBLJ20X25-20, matching the bore, stroke, adjust code, G1/8 port, and mounting. This SKU lacks the -S magnet option and cannot accept a position sensor. The rear screw is a travel stop, not a lock; it sets the end position but will not hold a load without live air. The MALJ uses a fixed rubber bumper and threaded covers, whereas the MBLJ upgrade features a riveted rolling-packed body.
Airtac B01-MALJ Special Application Cylinder B01-MALJ20X25-20 Technical Specifications
| Model | Airtac B01-MALJ Special Application Cylinder B01-MALJ20X25-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | B01-MBLJ20X25-20 |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Adjustable window | 5 – 25 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 300 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-MBLJ20X25-20 carries the same ratings.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Single-rod force, same as a standard MAL of this bore. The B01-MBLJ20X25-20 matches these values.
Model Code: Airtac B01-MALJ Special Application Cylinder B01-MALJ20X25-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×25 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 5–25 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-MALJ20X25-20 Is Used
PCB Edge Clamping
Dial in the 5-25 mm travel window to grip delicate circuit boards in an electronics test fixture without crushing the substrate, using the 157 N push force.
Micro Dispenser Depth
Set the exact needle height for an adhesive dispensing valve, using the rear stop to fine-tune the drop position within the 20 mm adjustment range.
Light Lever Actuation
Trigger a small mechanical micro-switch or release a delicate catch in packaging machinery where the 132 N pull force and compact 20 mm bore fit tight spaces.
Replacing the Airtac B01-MALJ Special Application Cylinder B01-MALJ20X25-20 with B01-MBLJ20X25-20
To replace this B01-MALJ20X25-20, order the MBLJ20X25-20. Confirm the 20 mm bore, 25 mm stroke, 20 mm adjust code, G1/8 PT port, and FA/LB mounting (no back cover or SDB allowed). Because this SKU lacks the -S magnet, it cannot take a sensor; if you need switches, the MBLJ upgrade moves to CMSG/DMSG/EMSG sensors from the older CS1-M/DS1-M family. Remember the adjuster is a stop, not a lock.
When sizing, you can step down or up. The next size down is the 12 mm bore (lower force, confirm from datasheet), but stepping up to the 25 mm bore gives you 245 N push at 0.5 MPa if your application needs more clamping power. This 20 mm bore provides 157 N push, 132 N pull, 220 N push at 0.7 MPa, and a 32 kgf maximum at 1.0 MPa.
Upgrade checklist
- ✓ Order the B01-MBLJ20X25-20 (same bore/stroke/adjust)
- ✓ Same 5–25 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-MBLJ20X25-20 instead of this discontinued model.
Airtac B01-MALJ Special Application Cylinder B01-MALJ20X25-20 FAQ
Yes, the B01-MALJ20X25-20 is discontinued. The exact drop-in replacement is the MBLJ20X25-20, which matches the 20 mm bore, 25 mm stroke, 20 mm adjust code, and G1/8 port. The B01- prefix simply denotes an application-dedicated variant of the base MALJ model. The MBLJ upgrade changes the body from threaded covers to a riveted rolling-packed design.
The usable travel window is 5-25 mm, created by the 20 mm rear adjuster on a 25 mm stroke. The full force figures are: 157 N push and 132 N pull at 0.5 MPa, 220 N push at 0.7 MPa, and a 32 kgf maximum at 1.0 MPa. The adjuster is a travel stop, not a lock, and this no-S SKU cannot accept a position sensor.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The B01-MBLJ20X25-20 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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