Airtac MG Stainless Steel Mini Air Cylinder MG40X100
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG40X100 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm 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
- Stroke100 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 MG40X100
With the largest bore in the MG family, the MG40X100 delivers 628.3 N push and 527.8 N pull at 0.5 MPa, rising to 879.6 N push at 0.7 MPa, in a compact round body rated for 0.15-1.0 MPa (22-145 psi). This double acting JIS-standard mini cylinder drives a 16 mm hard-chrome-plated rod through a 100 mm stroke at 30-800 mm/s, with a fixed anti-impact bumper pad softening each stroke end. The riveted SUS304 stainless barrel shrugs off damp, washdown-prone and outdoor conditions that quickly ruin painted-steel minis.
For buyers sizing a lift: the 628.3 N push at 0.5 MPa converts to roughly 64 kg of theoretical vertical thrust, so planning around about 32 kg gives a comfortable 2:1 margin for lifting real parts. Because the MG follows the JIS mini-cylinder standard, standard JIS brackets and I/Y rod knuckles bolt straight on, and the piston seal stores lubricant for long service. Note that a plain MG drifts when air is lost - add an external rod lock or pilot check valve if the load must stay put.
Airtac MG Stainless Steel Mini Air Cylinder MG40X100 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG40X100 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 MG40X100
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MG40X100 Is Used
Clamping on machining fixtures
The 879.6 N push at 0.7 MPa gives fixture clamps on a CNC milling setup a firm hold, while the SUS304 barrel tolerates coolant mist around the machine bed.
Palletising push-off arms
With about 32 kg of usable vertical thrust at 0.5 MPa, the MG40X100 pushes cartons off a conveyor stop plate or ejects filled trays at the end of a packaging line.
Lifting gate and lid mechanisms
A 100 mm stroke raising hopper lids or small machine guards benefits from the bumper pad, which decelerates the rod smoothly at the top of travel.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG40X100 the Right Cylinder?
At 40 mm bore this is the strongest MG: 628.3 N push at 0.5 MPa versus 563.0 N for the 32 mm and 343.4 N for the 25 mm. If your load sits under about 500 N at 0.5 MPa, the MG32 saves space and air; if you need more force or adjustable cushioning at higher speeds, step up to the MGC series, which extends the range to 50 mm and 63 mm bores. This SKU carries no magnet, so CMSG / DMSG / EMSG switches cannot be fitted - order the MG40X100S if position sensing is needed. Mount it with LB foot, FA flange, CB clevis or SDB pivot brackets, and remember the bumper pads only soften stroke-end impact, they do not hold a load.
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 MG40X100 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. Operating range is 0.15-1.0 MPa (22-145 psi) with proof pressure of 1.5 MPa (215 psi), running on air filtered to 40 um at 30-800 mm/s.
Not on this SKU. The MG40X100 has no built-in magnet, so CMSG, DMSG or EMSG switches cannot detect piston position. Order the MG40X100S, whose -S code adds the magnet. The cylinder itself is a JIS round-body unit with a 1/8" port, M14x1.5 male rod thread and LB, FA, CB or SDB mounting options.
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