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-MBLJ20X100-50S, 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-MALJ20X100-50S
The AirTAC Airtac B01-MALJ Special Application Cylinder B01-MALJ20X100-50S 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 50 to 100 mm. This model is discontinued — the drop-in replacement is the B01-MBLJ20X100-50S.
- BoreØ20 mm
- Stroke100 mm
- Adjust window50–100 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → B01-MBLJ20X100-50S
- 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-MALJ20X100-50S
The B01-MALJ20X100-50S is a discontinued, double-acting single-rod mini cylinder. The B01- prefix marks this as an AirTAC application-dedicated (customer-specified) variant of the base MALJ20X100-50S, meaning it is mechanically identical to the standard model. The 50 mm rear adjuster creates a usable stroke window of 50-100 mm, letting you dial in the exact reach without external stops. At 0.5 MPa this 20 mm bore delivers 157 N push and 132 N pull force.
The exact drop-in replacement is the MBLJ20X100-50S, matching the bore, stroke, adjust code, G1/8 port and mounting. This MALJ uses threaded covers and a CS1-M / DS1-M magnet sensor, whereas the MBLJ upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors. The adjuster acts as a travel stop, not a lock, so it cannot hold a load without live air. End impact is softened by a fixed rubber bumper, as there is no adjustable air cushion.
Airtac B01-MALJ Special Application Cylinder B01-MALJ20X100-50S Technical Specifications
| Model | Airtac B01-MALJ Special Application Cylinder B01-MALJ20X100-50S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | B01-MBLJ20X100-50S |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Adjustable window | 50 – 100 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-MBLJ20X100-50S 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-MBLJ20X100-50S matches these values.
Model Code: Airtac B01-MALJ Special Application Cylinder B01-MALJ20X100-50S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×100 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 50–100 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-MALJ20X100-50S Is Used
PCB Drill Depth Stop
Dial the 50-100 mm window to set precise Z-axis plunge depth on a PCB drilling fixture, using the 157 N push force to drive the spindle without over-travel.
Wire Forming Tensioner
Adjust the rear stop on a wire bending machine to tune the 100 mm extension exactly, ensuring consistent tensioning across different wire diameters.
Small Parts Ejector
Fine-tune the kick-out distance on an electronics assembly pick-and-place ejector, preventing the 8 mm rod from throwing delicate components too far.
Replacing the Airtac B01-MALJ Special Application Cylinder B01-MALJ20X100-50S with B01-MBLJ20X100-50S
To replace the B01-MALJ20X100-50S with the MBLJ20X100-50S, confirm the 20 mm bore, 100 mm stroke, 50 mm adjust code, G1/8 PT port, and FA or LB mounting (no back cover or SDB is used). Swap the CS1-M / DS1-M sensors for CMSG / DMSG / EMSG switches. Remember the rear adjuster sets end position but does not lock the load.
When sizing, stepping down to a 25 mm bore yields 245 N push at 0.5 MPa, while stepping up is not applicable here as 20 mm is the smallest MALJ option. For this 100 mm stroke, minimize rod side-load to prevent bending, as the 8 mm rod is relatively slender.
Upgrade checklist
- ✓ Order the B01-MBLJ20X100-50S (same bore/stroke/adjust)
- ✓ Same 50–100 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-MBLJ20X100-50S instead of this discontinued model.
Airtac B01-MALJ Special Application Cylinder B01-MALJ20X100-50S FAQ
Yes, the B01-MALJ20X100-50S is discontinued. The B01- prefix simply denotes an application-dedicated variant of the base MALJ20X100-50S. The exact drop-in replacement is the MBLJ20X100-50S, which matches the bore, stroke, 50 mm adjust code, and force. You must upgrade your sensors from CS1-M / DS1-M to CMSG / DMSG / EMSG switches.
The 20 mm bore provides 157 N push and 132 N pull at 0.5 MPa, 220 N push at 0.7 MPa, and a maximum of 32 kgf at 1.0 MPa. The -50 adjust code lets you trim up to 50 mm at the rear, creating a usable stroke window of 50-100 mm. The adjuster is a travel stop only, not a lock, and will not hold a load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The B01-MBLJ20X100-50S 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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