This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLD40X250-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLD40X250-S in place of this model. The MBLD replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S
The AirTAC Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S is a double-acting, double-rod aluminum mini cylinder: a rod exits both ends of the Ø40mm bore, so push and pull force are equal. This model is discontinued — the drop-in replacement is the MBLD40X250-S, matching bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke250 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM12×1.25
- StatusDiscontinued → MBLD40X250-S
About the Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S
The AirTAC MALD40X250-S is a discontinued double-acting, double-rod mini cylinder. A rod exits both ends of the 40 mm bore, delivering an equal 528 N of push and pull force at 0.5 MPa over a 250 mm stroke. The exact drop-in replacement is the MBLD40X250-S, matching the bore, stroke, G1/4 port, and mounting footprint.
This unit features a fixed rubber bumper and a 16 mm hard-chrome carbon-steel rod with an M12x1.25 end thread. The twin rods double the bearing surface to resist side loads and prevent rotation, allowing a rear rod to carry a cam or flag. This older MALD uses threaded covers and a -S magnet for CS1-M or DS1-M switches, whereas the MBLD upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors.
Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S Technical Specifications
| Model | Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S |
|---|---|
| Series | MALD double-rod mini cylinder (discontinued) |
| Replacement | MBLD40X250-S |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod |
| 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 |
Double-rod types have no back-cover code and no SDB pivot; mount on the body, LB foot or FA flange. The MBLD40X250-S carries the same ratings.
Output Force — Equal Both Ways (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 kgf | |
A rod exits both ends, so the effective area — and force — is equal in both directions. The MBLD40X250-S matches these values.
Model Code: Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S
| MALD | Double-rod aluminum mini 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 (MBLD uses CMSG/DMSG/EMSG). |
Replacement: MALD → MBLD. No back-cover (CA/U/CM) and no SDB on double-rod. Mounting: LB / FA.
Where the Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S Is Used
PCB Depaneling Saw
Drives a dual-sided blade carriage on a printed circuit board depaneling saw. The 528 N equal force handles the 250 mm cut length smoothly, while the twin rods keep the saw blade tracking straight without rotation.
Textile Loom Beam Shift
Transfers heavy warp beams between creels on a weaving loom. The rear rod acts as a mounting point for a tension flag, and the fixed rubber bumper absorbs the end-of-stroke impact from the heavy textile rolls.
Injection Mold Extractor
Ejects plastic parts from an injection molding cavity using dual tooling plates. The 739 N force at 0.7 MPa provides positive ejection, and the absence of a back cover allows the rear rod to pass completely through for extended reach.
Replacing the Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S with MBLD40X250-S
To replace the MALD40X250-S, order the MBLD40X250-S. Confirm the 40 mm bore, 250 mm stroke, G1/4 PT port, and M12x1.25 rod thread. Retain your FA or LB mounting; there is no back cover or SDB option on this body. Because the -S magnet is present, plan to swap your existing CS1-M/DS1-M reed switches for CMSG/DMSG/EMSG solid-state sensors. Size using the equal-both-ways force: this bore yields 528 N at 0.5 MPa. If you need less force, step down to the 32 mm bore (346 N at 0.5 MPa). As 40 mm is the largest MALD bore, it is the maximum available size. For the 250 mm stroke, ensure external guide rails support the load to prevent rod binding.
Upgrade checklist
- ✓ Order the MBLD40X250-S (same bore/stroke/force)
- ✓ Force equal both ways (528 N at 0.5 MPa)
- ✓ Twin rods for anti-rotation / rear flag
- ✓ No back cover / SDB — plan a body or 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 Protect both rod ends from side load on long strokes.
- check No back-cover / SDB on double-rod — use body / FA / LB.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the MBLD40X250-S instead of this discontinued model.
Airtac MALD Aluminum Alloy Mini Cylinder MALD40X250-S FAQ
Yes, the MALD40X250-S is discontinued. The exact drop-in replacement is the MBLD40X250-S, which matches the 40 mm bore, 250 mm stroke, G1/4 port, and mounting dimensions. You will need to upgrade your CS1-M/DS1-M sensors to CMSG/DMSG/EMSG switches for the new body.
Because it is a double-rod cylinder, the push and pull forces are equal: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum of 108 kgf at 1.0 MPa. It uses a fixed rubber bumper at both ends for end-of-stroke impact absorption and does not feature adjustable cushioning or a pneumatic lock.
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Drop-in Upgrade
The MBLD40X250-S replaces this model 1:1.
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MBLD replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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