Airtac MG Stainless Steel Mini Air Cylinder MG40X75H
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG40X75H is a genuine double acting 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
- Rod threadM14×1.5
- CushionFixed anti-impact bumper pads
About the Airtac MG Stainless Steel Mini Air Cylinder MG40X75H
With a 40 mm bore and a short 75 mm stroke, this MG cylinder is a double acting JIS round-body unit built around a riveted SUS304 stainless barrel and a hard-chrome plated 16 mm rod, so it shrugs off damp shop air and light washdown far better than painted mini cylinders. At the stroke ends a fixed anti-impact bumper pad softens the direction change; it decelerates the piston only and is not an adjustable air cushion. Air runs at 0.15-1.0 MPa (22-145 psi) with speeds of 30-800 mm/s.
In force terms this is the strongest base MG bore: about 628.3 N push and 527.8 N pull at 0.5 MPa, rising to 879.6 N push at 0.7 MPa, with a theoretical ceiling of 128.1 kgf at 1.0 MPa. For real work, plan on roughly 377 N of usable push at 0.5 MPa, which means this cylinder lifts about 32 kg vertically once you keep a 2:1 margin. Note that the rod drifts if air is lost, so an external lock or pilot check valve is needed to hold a load.
Airtac MG Stainless Steel Mini Air Cylinder MG40X75H Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG40X75H |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| 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 | Fixed anti-impact bumper pads |
| 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MG Stainless Steel Mini Air Cylinder MG40X75H
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MG Stainless Steel Mini Air Cylinder MG40X75H Is Used
Clamping fixtures on CNC pallets
About 628.3 N of push at 0.5 MPa seats workpieces into machining fixtures, and the short 75 mm stroke keeps the cycle fast between pallet changes.
Carton press-down stations
The 40 mm bore presses flaps or labels down on packaging lines, where the SUS304 barrel tolerates humid filler-room air and the bumper pad quiets each stroke end.
Battery-lift gate assist
Lifting about 32 kg vertically with a 2:1 margin suits forklift battery-cover gates and similar hinged guards in warehouses.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG40X75H the Right Cylinder?
Size between neighbours: the 32 mm bore MG gives about 402.2 N push at 0.5 MPa, while stepping up from the 40 mm bore means moving to the cushioned MGC series, which reaches 50 and 63 mm bores for heavier or faster jobs. This SKU has no S code, so no CMSG / DMSG / EMSG sensor can be fitted; order the magnet version if position detection matters. Mount it with LB foot, FA flange, CB clevis or SDB pivot brackets, and add I or Y rod knuckles on the tooling side. The 75 mm stroke is well inside the 500 mm standard range, so side-load and rod-bending concerns are minimal, but keep the rod square to the load anyway.
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 / CB / SDB) & 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/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MG Stainless Steel Mini Air Cylinder MG40X75H FAQ
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N; at 0.7 MPa those figures rise to 879.6 N push and 738.9 N pull. The theoretical maximum is 128.1 kgf at 1.0 MPa. The 40 mm bore drives a 16 mm hard-chrome rod through a 75 mm stroke at 30-800 mm/s, with a 1/8" port and PT thread.
Not on this SKU. The MG40X75H has no built-in magnet, and the CMSG, DMSG and EMSG switches only work when the optional S code (magnet) is ordered. The stainless JIS round body itself takes standard LB foot, FA flange, CB clevis and SDB pivot mounts, and the fixed bumper pads simply soften the stroke ends without any cushion adjustment.
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