This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLD40X500-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLD40X500-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 MALD40X500-S
The AirTAC Airtac MALD Aluminum Alloy Mini Cylinder MALD40X500-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 MBLD40X500-S, matching bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke500 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM12×1.25
- StatusDiscontinued → MBLD40X500-S
About the Airtac MALD Aluminum Alloy Mini Cylinder MALD40X500-S
The AirTAC MALD40X500-S is a discontinued double-acting, double-rod mini cylinder. Its twin rods exit both ends of the 40mm bore, delivering equal push and pull force of 528 N each way at 0.5 MPa. The exact drop-in replacement is the MBLD40X500-S, matching the 500mm stroke, G1/4 port, and mounting footprint.
This -S SKU includes a magnet for position sensing. The legacy MALD uses CS1-M / DS1-M switches, while the MBLD upgrade uses CMSG / DMSG / EMSG sensors. The original MALD features threaded covers and a fixed rubber bumper; the MBLD improves durability with a riveted rolling-packed body. At 500mm stroke, the extended twin carbon-steel rods provide high anti-rotation resistance but require careful guide alignment to prevent side-load binding.
Airtac MALD Aluminum Alloy Mini Cylinder MALD40X500-S Technical Specifications
| Model | Airtac MALD Aluminum Alloy Mini Cylinder MALD40X500-S |
|---|---|
| Series | MALD double-rod mini cylinder (discontinued) |
| Replacement | MBLD40X500-S |
| Bore size | Ø40 mm |
| Stroke | 500 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 MBLD40X500-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 MBLD40X500-S matches these values.
Model Code: Airtac MALD Aluminum Alloy Mini Cylinder MALD40X500-S
| MALD | Double-rod aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×500 | 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 MALD40X500-S Is Used
Servo-Driven Slitter Knife Slide
Powers a 500mm stroke slitter knife carriage in a paper mill, using the twin rods' anti-rotation property to hold a 108 kgf max cutting load without play.
PCB Conveyor Diverter Arm
Drives a long 500mm diverter gate on an electronics assembly line, using the 528 N equal both-ways force to reliably push and retract the panel guide.
Rear-Mounted Part Ejector
Uses the rear rod on a CNC machining center to actuate a part ejection flag, sensing position with the -S magnet while the front rod drives the 739 N @0.7 MPa kickout.
Replacing the Airtac MALD Aluminum Alloy Mini Cylinder MALD40X500-S with MBLD40X500-S
Replace the MALD40X500-S directly with the MBLD40X500-S, confirming the 40mm bore, 500mm stroke, M12x1.25 rod-end thread, PT G1/4 port, and FA/LB mounting (no back cover or SDB exists). Size based on the equal 528 N force both ways. If less force is needed, step down to the 32mm bore (346 N @0.5 MPa); if more is required, step up is unavailable as 40mm is the largest MALD bore. Because the stroke is 500mm, ensure external guides support the long twin rods to prevent binding and premature seal wear.
Upgrade checklist
- ✓ Order the MBLD40X500-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 MBLD40X500-S instead of this discontinued model.
Airtac MALD Aluminum Alloy Mini Cylinder MALD40X500-S FAQ
Yes, the MALD40X500-S is discontinued. The exact drop-in replacement is the MBLD40X500-S, matching the 40mm bore, 500mm stroke, G1/4 port, and LB/FA mounting. You will only need to update your sensor brackets, as the MBLD uses CMSG / DMSG / EMSG switches instead of the older CS1-M / DS1-M.
Force is equal both ways: 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 end-of-stroke to soften impact; it has no adjustable cushion and provides no powered load-holding on air loss.
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Drop-in Upgrade
The MBLD40X500-S replaces this model 1:1.
Fast Dispatch
MBLD replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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