
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC40X450 is a genuine double acting + cushion 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.
The AirTAC MGC40X450 is a double acting, JIS-standard round-body mini cylinder with a 40 mm bore and a long 450 mm stroke, fitted with a variable air cushion at both ends. Unlike the bumper-type MG, the cushion needles let you dial in end-of-stroke deceleration, so this cylinder can run at higher piston speeds and carry heavier moving loads without hammering the covers. At 0.5 MPa it delivers a push force of 628.3 N and a pull force of 527.8 N; at 0.7 MPa that rises to 879.6 N push and 738.9 N pull. As a rule of thumb, keep the safe working load near 0.6 of the push force, which works out to roughly 38 kg for horizontal duty on this model.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, and a hard-chrome plated (20 um) 16 mm carbon-steel rod with an M14x1.5 male thread. The two-way piston seal also stores lubricant, and the 1/8" ports take PT thread as standard. Operating pressure is 0.15-1.0 MPa (22-145 psi) with proof pressure of 1.5 MPa (215 psi), the fluid is air filtered to 40 um, the temperature range is -20 to +70 C, and piston speed spans 30-800 mm/s. Mounting is by FA flange or LB foot, with I and Y rod knuckles available. Note that the 450 mm stroke is within the 500 mm maximum standard stroke for this bore, so it ships as a standard item. The cushion only decelerates the stroke end; it is not a lock or brake, so use an external rod lock or pilot check valve if the load must be held on air loss.
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC40X450 |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting + 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.
| 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.
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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.
The long 450 mm stroke pushes cartons or totes off a line, and the variable air cushion absorbs the moving mass at end of stroke so high line speeds do not hammer the cylinder covers.
With 628.3 N push at 0.5 MPa (879.6 N at 0.7 MPa), the 40 mm bore clamps or lightly presses jigs and workpieces, and the adjustable cushion softens the approach into the stop.
Fast extend-retract cycling on palletizing cells suits the 30-800 mm/s speed range; the cushioned ends decelerate the pusher arm smoothly even with heavier product loads.
Size the MGC40X450 both ways. At 40 mm bore it sits mid-range in the MGC family: it gives 628.3 N push at 0.5 MPa, roughly 2.5 times the 245.3 N of the 25 mm bore, while the 50 mm bore steps up to 981.3 N if you need more force. If your application is slower and lighter and you do not need end-of-stroke deceleration, the bumper-type MG in 40 mm bore is the no-cushion alternative; the MGC is the right pick when piston speed or moving mass would otherwise slam the covers. The variable air cushion at both ends is adjusted with the needle valves, so you can tune the deceleration to the load. This SKU has no magnet fitted, so no position sensor can be mounted; add the S code if you want CMSG, DMSG or EMSG switch sensing. Mount with the FA flange or LB foot, and use the I or Y rod knuckle where the tooling needs a swivel. With a 450 mm stroke on a 16 mm rod, keep side loads off the rod and guide the load externally; strokes beyond the 500 mm standard maximum, up to 800 mm, are made to order.
Quick checklist
At 0.5 MPa (72.5 psi) it pushes with 628.3 N and pulls with 527.8 N; at 0.7 MPa (101.5 psi) push is 879.6 N and pull is 738.9 N. The theoretical maximum force at 1.0 MPa is 128.1 kgf. Keep the safe working load near 0.6 of the push force, about 38 kg.
Needle valves at each end meter the exhaust air so the piston decelerates smoothly before the cover; you adjust the cushioning to suit speed and load. The cushion only slows the stroke end, it is not a lock or brake, and the MGC does not hold position on air loss. For a held load, add an external rod lock or pilot check valve.
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