This model is discontinued
AirTAC has phased out the MAL series. You can still order this code here: we ship the direct replacement B01-MBL20X250U, with the same bore, stroke, output force, port and mounting, so it fits the same application. The MBL replacement upgrades to a riveted rolling-packed body and the current CMSG / DMSG / EMSG sensor switches (the MAL used CS1-M / DS1-M).
Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U
The AirTAC B01-MAL Special Purpose Cylinder B01-MAL20X250U is a double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 250mm stroke, G1/8 air ports and a fixed rubber bumper. This model is discontinued — the direct replacement is the B01-MBL20X250U, which matches its bore, stroke, force and mounting.
- BoreØ20 mm
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- StatusDiscontinued → B01-MBL20X250U
- 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-MAL Special Purpose Cylinder B01-MAL20X250U
The AirTAC B01-MAL20X250U is a discontinued double-acting aluminum mini round cylinder. The leading "B01-" prefix marks this as an application-dedicated (customer-specified) variant of the base MAL20X250U, meaning it is mechanically identical to the standard catalog model. Delivering 157 N of push force at 0.5 MPa, it provides compact actuation for tight spaces.
AirTAC replaced the MAL series with the MBL line, making the MBL20X250U the direct replacement. It shares the same 20 mm bore, 250 mm stroke, G1/8 port, and flat-end U cover. The legacy MAL features threaded front and back covers, whereas the newer MBL utilizes a riveted rolling-packed body. Internally, a heterogeneous two-way seal retains grease, and the carbon-steel rod has a 20 um hard-chrome plating to resist wear.
Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U Technical Specifications
| Model | Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U |
|---|---|
| Series | MAL aluminum-barrel mini round cylinder (discontinued) |
| Replacement | B01-MBL20X250U |
| Bore size | Ø20 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| 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 500 mm |
Specifications follow the official AirTAC MAL datasheet (now discontinued). The B01-MBL20X250U carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
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 | |
The B01-MBL20X250U produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U
| MAL | Aluminum-barrel mini round cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×250 | Stroke length in mm. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBL uses CMSG/DMSG/EMSG). |
| CA / U / CM | Back cover: CA pivot, U flat-end or CM round-end. |
Replacement mapping: MAL → MBL, MSAL → MSBL, MTAL → MTBL, MALD → MBLD, MALJ → MBLJ.
Where the Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U Is Used
PCB Depaneling Router
Pushes a carrier plate into a routing fixture with 157 N of force at 0.5 MPa, fitting easily into tight electronics assembly enclosures.
Small Parts Ejector
Ejects lightweight plastic moldings from a chute using a 250 mm stroke, relying on the rigid U flat-end cover to keep the rear mount stable.
Connector Insertion Arm
Cycles at 30-800 mm/s to press pin headers into sockets, where the compact 20 mm bore saves valuable vertical machine space.
Replacing the Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U with B01-MBL20X250U
To replace this unit, order the MBL20X250U, which matches the 20 mm bore, 250 mm stroke, PT thread, and rigid U flat-end cover. Because this SKU lacks an -S magnet, it cannot accept a position sensor. If you need position detection, order the MBL20X250S and note that the newer MBL uses CMSG / DMSG / EMSG switches instead of the older CS1-M / DS1-M sensors. The MAL uses a fixed rubber bumper, not an adjustable cushion; for deceleration control, step up to the current MBLC line.
When sizing, note that the 20 mm bore offers 157 N push at 0.5 MPa. If you need less force, there is no smaller MAL bore available. If you need more force, stepping up to the 25 mm bore yields 245 N push at 0.5 MPa. Because this is a 250 mm stroke, the 8 mm rod has low side-load tolerance; use an external guide rail to prevent rod bending. A plain bumper does not hold position if air pressure drops, so fit a pilot-operated check valve for suspended loads.
Upgrade checklist
- ✓ Order the B01-MBL20X250U (same bore/stroke/force)
- ✓ Same G1/8 port and mounting accessories
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
- ✓ Need a cushion? use MBLC (adjustable air cushion)
- ✓ Confirm back cover (CA / U) and thread (PT/NPT/G)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.1 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Front/rear covers are threaded — not intended for field disassembly.
- check Use the correct mounting accessory (LB / FA / SDB) and back cover (CA / U / CM).
- check For new builds, specify the B01-MBL20X250U instead of this discontinued model.
Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U FAQ
Yes, the B01-MAL20X250U is discontinued. The direct replacement is the MBL20X250U, which matches the 20 mm bore, 250 mm stroke, G1/8 port, and U flat-end cover. The "B01-" prefix simply denotes an application-dedicated variant of the base MAL model, so the MBL replacement functions identically.
At 0.5 MPa, the push force is 157 N and the pull force is 132 N. At 0.7 MPa, the push force is 220 N, with a maximum theoretical force of 32 kgf at 1.0 MPa. The fixed rubber bumper softens the end of stroke but does not lock the rod; if air is lost, the cylinder drifts and cannot hold a load without an external rod lock or pilot-operated check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The B01-MBL20X250U replaces this model 1:1.
Fast Dispatch
MBL replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended AirTAC MBL Replacements
Request a Quote (Airtac B01-MAL Special Purpose Cylinder B01-MAL20X250U → B01-MBL20X250U)
Tell us the quantity and destination — we quote the direct B01-MBL20X250U replacement with price, stock and lead time, usually within 7-8 hours.