Airtac MG Stainless Steel Mini Air Cylinder MG40X450
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG40X450 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 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 MG40X450
With a 40 mm bore and a long 450 mm stroke, this MG series cylinder runs double acting on filtered air at 0.15-1.0 MPa (22-145 psi), pushing with about 628.3 N at 0.5 MPa. The riveted round body pairs a SUS304 stainless barrel with a hard-chrome plated rod, so it shrugs off damp, washdown-prone and outdoor conditions that quickly ruin painted-steel minis. It follows the JIS mini-cylinder standard, so standard JIS brackets and rod knuckles bolt straight on.
At the stroke ends a fixed anti-impact bumper pad decelerates the piston - it softens the landing only and is not an adjustable air cushion. For sizing in practice, treat roughly 377 N (about 0.6 of the push rating) as the usable working force at 0.5 MPa, which corresponds to lifting about 32 kg vertically with a 2:1 margin. Speed range is 30-800 mm/s and proof pressure is 1.5 MPa (215 psi).
Airtac MG Stainless Steel Mini Air Cylinder MG40X450 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG40X450 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 MG40X450
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 MG40X450 Is Used
Bottling line pusher
The 628.3 N push at 0.5 MPa easily indexes crates of bottled drinks across a transfer conveyor, and the stainless barrel tolerates daily washdown in the wet end of the plant.
Pallet strapper clamp
A 450 mm stroke reaches down over a pallet load to press a strapping head home, with the bumper pad easing the piston at the bottom of each cycle.
Textile loom doffer
In a weaving shed, the long stroke sweeps finished fabric rolls off the loom rail, and the corrosion-resistant SUS304 body stands up to humid, fibre-laden air.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG40X450 the Right Cylinder?
At 0.5 MPa this bore pushes 628.3 N; the next MG size down, the 32 mm bore, manages only 402.2 N, so step up to 40 mm once your load passes roughly 240 N of real work. If you need more force or adjustable cushioning at the ends, the cushioned MGC series extends the range to 50 and 63 mm bores. This SKU carries no S code, so no CMSG / DMSG / EMSG sensor can be fitted - order the magnet version if position detection is planned.
With 450 mm of travel, keep the rod side-load low and guide the load externally; the 16 mm rod and M14x1.5 male thread suit a clevis (CB) or yoke knuckle, with LB foot, FA flange or SDB pivot mounts to frame the long stroke. Note that a plain MG drifts when air is removed - it does not lock position, so add an external rod lock or pilot check valve where a held load matters.
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 MG40X450 FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa those rise to 879.6 N push and 738.9 N pull. The theoretical maximum is 128.1 kgf at 1.0 MPa. It is double acting, runs on 40 um filtered air at 0.15-1.0 MPa (22-145 psi), and travels at 30-800 mm/s over its 450 mm stroke.
Not as supplied - this SKU has no built-in magnet. The optional S code adds the magnet that lets CMSG, DMSG or EMSG switches detect piston position. The 1/8" ports, PT thread option and JIS-standard mounting faces make it a straightforward swap into existing JIS mini-cylinder installations.
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