Airtac MG Stainless Steel Mini Air Cylinder MG40X75S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG40X75S 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MG Stainless Steel Mini Air Cylinder MG40X75S
With a 40 mm bore pushing 628.3 N at 0.5 MPa, the MG40X75S is a double acting JIS round-body mini cylinder with a 75 mm stroke, built on a riveted SUS304 stainless barrel and a hard-chrome plated 16 mm rod. The fixed anti-impact pad at each stroke end softens direction changes - it decelerates the piston, it is not an adjustable air cushion. A built-in magnet is already fitted, so CMSG, DMSG or EMSG switches can be added without ordering the -S suffix.
In practice the numbers give you headroom: at 0.5 MPa the push force of 628.3 N translates to roughly 64 kgf, so plan on lifting about 32 kg vertically with a 2:1 margin, and treat around 377 N as the realistic working force for continuous duty. Pressure runs 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof, speed 30-800 mm/s, and the JIS mounting footprint accepts standard mini-cylinder brackets and I/Y rod knuckles.
Airtac MG Stainless Steel Mini Air Cylinder MG40X75S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG40X75S |
|---|---|
| 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 MG40X75S
| 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 MG40X75S Is Used
Carton press-down station
The 628.3 N push at 0.5 MPa settles flaps and labels on carton closing heads, and the 75 mm stroke suits shallow press fixtures on packaging lines.
Fixture clamping with position feedback
The built-in magnet drives a CMSG switch to confirm clamp state on machining jigs, while the fixed bumper pad quiets each clamp cycle at 30-800 mm/s.
Battery-powered part ejector
In assembly cells the 40 mm bore ejects housings weighing around 30 kg from nests vertically, with the stainless barrel shrugging off coolant mist.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG40X75S the Right Cylinder?
At 628.3 N push (527.8 N pull) at 0.5 MPa, the 40 mm bore sits at the top of the MG range; the next bore down, the 32 mm MG, delivers 402.2 N, so step down if your load is under about 240 N working. If you need more force or an adjustable cushion for higher speeds, move to the MGC series which extends to 50 and 63 mm bores. Remember this cylinder does not hold position when air is lost - the rod drifts - so fit an external rod lock or a pilot check valve for held loads. The fitted magnet means CMSG/DMSG/EMSG position sensing works out of the box; choose LB foot, FA flange, CB clevis or SDB pivot mounting to suit the machine frame.
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 MG40X75S FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa that rises to 879.6 N push and 738.9 N pull, with a theoretical maximum of 128.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, port 1/8", rod 16 mm with M14x1.5 male thread.
No - the S in the model code means the piston magnet is factory-fitted, so CMSG, DMSG or EMSG reed switches mount directly on the SUS304 barrel. The fixed bumper pads at the stroke ends only soften impact; they do not cushion adjustably or hold a load when air is lost.
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