This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B01-MBL40X250U — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B01-MBL40X250U in place of this model. 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-MAL40X250U
The AirTAC Airtac B01-MAL Special Purpose Cylinder B01-MAL40X250U is a double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 250mm stroke, G1/4 air ports and a fixed rubber bumper. This model is discontinued — the drop-in replacement is the B01-MBL40X250U, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke250 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → B01-MBL40X250U
About the Airtac B01-MAL Special Purpose Cylinder B01-MAL40X250U
The AirTAC B01-MAL40X250U 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 MAL40X250U, meaning it is mechanically identical to the standard model. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa, utilizing a 40 mm bore and 250 mm stroke. AirTAC has ended this series, so the exact drop-in replacement is the MBL40X250U, which matches the bore, stroke, output force, G1/4 port, and U flat-end mounting.
This legacy unit relies on a fixed rubber bumper for end-of-stroke damping rather than an adjustable air cushion. If your machinery requires adjustable cushioning, the current MBLC line offers that feature. The original MAL body uses threaded front and back covers, whereas the modern MBL replacement features a riveted rolling-packed body. Because this specific SKU lacks an "S" code, it has no internal magnet and cannot support position sensors. Furthermore, the 16 mm carbon-steel rod with 20 um hard chrome plating handles the 250 mm stroke, but the relatively small rod diameter means side-load tolerance is low and an external guide is recommended for this length.
Airtac B01-MAL Special Purpose Cylinder B01-MAL40X250U Technical Specifications
| Model | Airtac B01-MAL Special Purpose Cylinder B01-MAL40X250U |
|---|---|
| Series | MAL aluminum-barrel mini round cylinder (discontinued) |
| Replacement | B01-MBL40X250U |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| 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 |
Specifications follow the official AirTAC MAL datasheet (now discontinued). The B01-MBL40X250U carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
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 | |
The B01-MBL40X250U produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac B01-MAL Special Purpose Cylinder B01-MAL40X250U
| MAL | Aluminum-barrel mini round cylinder, double acting (discontinued). |
|---|---|
| 40 | 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-MAL40X250U Is Used
Pallet Divert Gate
Actuates a routing flap on a packaging conveyor, using the 628 N push force at 0.5 MPa to reliably redirect heavy cardboard cartons without stalling.
CNC Lathe Door
Slides a heavy machine tool safety door open and closed across the 250 mm stroke, relying on the rigid U flat-end back cover to maintain alignment under repetitive cycling.
Parts Ejector Chute
Pushes completed aluminum fittings out of a machining center into a collection bin, where the fixed rubber bumper absorbs the impact at the end of the 250 mm extension.
Replacing the Airtac B01-MAL Special Purpose Cylinder B01-MAL40X250U with B01-MBL40X250U
To replace the B01-MAL40X250U, order the MBL40X250U. Confirm your setup uses the default PT tapered port thread, the U flat-end rigid back cover, and that you do not need a magnet sensor, as this SKU lacks the -S option. If you previously used a -S variant on the MAL line, note that the MBL upgrade shifts sensor compatibility from the older CS1-M / DS1-M switches to the current CMSG / DMSG / EMSG families. The fixed rubber bumper softens impact but does not lock the rod; if you need to hold a vertical load without drifting, install an external rod lock or pilot-operated check valve.
For sizing flexibility, stepping down to a 32 mm bore yields 402 N of push force at 0.5 MPa, while this 40 mm bore provides 628 N. There is no larger standard bore in this mini round family. Because the 250 mm stroke exceeds 300 mm proximity, the 16 mm rod is susceptible to bending under lateral stress. You must use an external guide rail or ensure the load is purely axial to prevent premature seal wear and rod damage.
Upgrade checklist
- ✓ Order the B01-MBL40X250U (same bore/stroke/force)
- ✓ Same G1/4 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-MBL40X250U instead of this discontinued model.
Airtac B01-MAL Special Purpose Cylinder B01-MAL40X250U FAQ
Yes, the B01-MAL40X250U is discontinued. The exact drop-in replacement is the MBL40X250U. The "B01-" prefix simply indicates an application-dedicated build of the standard MAL40X250U, so the MBL40X250U matches it exactly on bore, stroke, G1/4 port, and U flat-end mounting.
At 0.5 MPa it provides 628 N push and 528 N pull force. At 0.7 MPa the push force is 880 N, and the maximum theoretical force is 128 kgf at 1.0 MPa. This specific SKU lacks the -S magnet code, so it cannot accept position sensors like CS1-M or DS1-M.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The B01-MBL40X250U replaces this model 1:1.
Fast Dispatch
MBL replacements usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
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