Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 75mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke75 mm
- Port size1/8"
- Acting typeDouble acting, double rod + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75
The AirTAC MGCD40X75 is a double acting, double-rod JIS round-body mini cylinder with a 40 mm bore and 75 mm stroke. A rod exits both covers with the same M14x1.5 male thread at each end, so the piston-side and rod-side areas are identical and the output force is equal in both directions: about 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa. Because both rod ends move together, the rear rod gives you an anti-rotation surface for a position flag, stop or second light load. Unlike the bumper-equipped MGD, this variant carries a variable air cushion at both ends, adjustable to decelerate the piston smoothly for higher speeds and heavier moving loads.
Construction follows the JIS mini-cylinder footprint: a riveted SUS304 stainless barrel with a hard-chrome plated 16 mm rod for corrosion resistance and long seal life. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi), from -20 to +70 C, at speeds of 30-800 mm/s. Air supply is 1/8" ported. For a realistic working figure, take roughly 0.6 of the 0.5 MPa force: about 32 kg of usable vertical load. Add the optional S magnet code to fit CMSG, DMSG or EMSG switches; without the magnet no sensor can be mounted.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | 1/8" |
| Rod thread | M14×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75 Is Used
High-speed anti-rotation transfer
The through-rod keeps the load from twisting while the variable air cushion brakes the 75 mm stroke smoothly at both ends, letting pick-and-place slides cycle near 800 mm/s without hard stops.
Twin-load press with soft stop
With 527.8 N per direction at 0.5 MPa, the front rod presses a light part while the rear rod carries a fixture or flag, and the adjustable cushions absorb the impact at each end of the cycle.
Rear-switch reciprocating slide
Fit a position flag to the second rod end and, with the -S magnet option, CMSG or DMSG switches read both stroke ends on a repetitive feed or eject motion.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75 the Right Cylinder?
Size the MGCD40X75 when you need equal force both ways with cushioned stops: at 527.8 N per direction at 0.5 MPa it sits mid-range in the MGCD family (bores 20 to 63). If you only need 131.9 to 206.1 N, step down to bore 20 or 25; for 824 N or more, go to bore 50 or 63. If you want a double-rod cylinder with a fixed bumper instead of an adjustable cushion at bores 20-40, choose the MGD; for a single rod with cushion, choose the MGC. The variable air cushion suits high-speed cycles (up to 800 mm/s) and heavier payloads, and the through-rod provides inherent anti-rotation plus a rear rod end for switching flags or a second attachment. Mount with the FA flange or LB foot, and pair rods with I or Y knuckle joints (SDB and CB are not offered). Order the -S code if you plan to fit CMSG/DMSG/EMSG reed sensors. For strokes beyond the 500 mm standard maximum at this bore, or for significant side loads, request a non-standard build or add external guidance.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA) & knuckle
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X75 FAQ
Because the double-rod design exposes the rod-side area in both directions, output is equal each way: 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a theoretical maximum of 107.6 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, temperature -20 to +70 C, and speed 30-800 mm/s. Ports are 1/8" and the rod thread is M14x1.5 at both ends.
The MGCD40X75 has an adjustable air cushion at both ends that decelerates the piston near each stroke end, so you can run faster cycles with heavier loads without metal-to-metal impact. It is not a lock: the cylinder will not hold its position on air loss, so add a pilot check valve or external rod lock for load holding. The MGD is also double-rod but uses fixed bumper pads instead of an adjustable cushion, while the MGC is a single-rod cushioned cylinder. Order the -S magnet code if you need CMSG, DMSG or EMSG position sensing.
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