MB1W Series Square-Tube Type Air Cylinder, Standard Type, Double Acting, Double Rod

Caution
- ■ SMC Product Line
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- Product images may be representative images. Refer to the manufacturer's catalog for shape details.
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Product Description
A lightweight air cylinder made lighter by changing the shape of the rod cover and head cover.
[Features]
· Square tube type.
· Can mount small auto switches on 4 surfaces.
· Without auto switch (MB1W) or with auto switch (built-in magnet) (MDB1W).
· Mounting: basic type, foot type, flange type.
· Port thread types: Rc, NPT, G.
· Rod boot material (J): nylon tarpaulin, maximum ambient temperature 70°C.
· Rod boot material (K): heat-resistant tarpaulin, maximum ambient temperature 110°C*.
*Maximum ambient temperature for the rod boot unit.
MB1W Series Square-Tube Type Air Cylinder, Standard Type, Double Acting, Double Rod Specifications

MB1W Series Square-Tube Type Air Cylinder, Standard Type, Double Acting, Double Rod external appearance

MB1W Series Square-Tube Type Air Cylinder, Standard Type, Double Acting, Double Rod JIS symbol (air cushion)
| Tube Inner Diameter (mm) | 32 | 40 | 50 | 63 | 80 | 100 | 125 |
|---|---|---|---|---|---|---|---|
| Action | Double acting, double rod | ||||||
| Fluid | Air | ||||||
| Proof Pressure | 1.5 MPa | ||||||
| Maximum operating pressure | 1.0 MPa | ||||||
| Minimum operating pressure | 0.05 MPa | ||||||
| Ambient temperature and Operating Fluid Temperature | Without auto switch: -10°C to +70 ℃ (No freezing) With auto switch: -10°C to +60 ℃ (No freezing) | ||||||
| Lubrication | Not required (non-lubricated) | ||||||
| Piston Speed | 50 to 1,000 mm/s | 50 to 700 mm/s | |||||
| Stroke Length Tolerance | Up to 250: (0 to +1.0), 251 to 1,000: (0 to +1.4) | ||||||
| Cushion* | Air cushion or rubber bumper | ||||||
| Connection Port Size (Rc, NPT, G) | 1/8 | 1/4 | 3/8 | 1/2 | |||
| Mounting | Basic style, foot style, flange style | ||||||
*Kinetic energy absorbable by the cushion mechanism is the same as double acting, single rod type.
Weight Table
(Unit: kg)
| Tube Inner Diameter (mm) | 32 | 40 | 50 | 63 | 80 | 100 | 125 | |
|---|---|---|---|---|---|---|---|---|
| Basic weight | Basic type | 0.59 | 0.81 | 1.43 | 1.71 | 3.18 | 4.38 | 6.68 |
| Foot type | 0.71 | 0.95 | 1.65 | 1.99 | 3.68 | 5.04 | 8.76 | |
| Flange type | 0.88 | 1.18 | 1.88 | 2.50 | 4.63 | 7.69 | 10.86 | |
| Additional weight per 50 mm of stroke | All mounting brackets | 0.21 | 0.3 | 0.46 | 0.51 | 0.77 | 1.1 | 1.25 |
Calculation
Example) MB1WB32-100Z (Basic, ø32 [32‑mm diameter], 100 mm stroke)
- Basic weight: 0.59 kg
- Additional weight: 0.21 / 50 stroke
- Cylinder stroke: 100 stroke
0.59 + +0.21 × 100/50 = 1.01kg
Drawing
Standard type
(Units: mm)

Dimensional drawings 1: basic (B)
(Units: mm)

Dimensional drawings 2: basic (B)
(Units: mm)
| Tube Inner Diameter (mm) | A | AL | B | B1 | C | D | E | F | G | H | H1 | J | K | KA | MA | MB | MM | N | P | S* | V | W | ZZ* |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 32 | 22 | 19.5 | 46 | 17 | 32.5 | 12 | 30 | 13 | 13 | 47 | 6 | M6 × 1 | 6 | 10 | 16 | 4 | M10 × 1.25 | 26 | 1/8 | 84 | 4 | 6.5 | 178 |
| 40 | 30 | 27 | 52 | 22 | 38 | 16 | 35 | 13 | 14 | 51 | 8 | M6 × 1 | 6 | 14 | 16 | 4 | M14 × 1.5 | 26 | 1/4 | 84 | 4 | 9 | 186 |
| 50 | 35 | 32 | 65 | 27 | 46.5 | 20 | 40 | 14 | 15.5 | 58 | 11 | M8 × 1.25 | 7 | 18 | 16 | 5 | M18 × 1.5 | 30.5 | 1/4 | 94 | 5 | 10.5 | 210 |
| 63 | 35 | 32 | 75 | 27 | 56.5 | 20 | 45 | 14 | 16.5 | 58 | 11 | M8 × 1.25 | 7 | 18 | 16 | 5 | M18 × 1.5 | 30.5 | 3/8 | 94 | 9 | 12 | 210 |
| 80 | 40 | 37 | 95 | 32 | 72 | 25 | 45 | 20 | 19 | 72 | 13 | M10 × 1.5 | 10 | 22 | 16 | 5 | M22 × 1.5 | 37 | 3/8 | 114 | 11.5 | 14 | 258 |
| 100 | 40 | 37 | 114 | 41 | 89 | 30 | 55 | 20 | 19 | 72 | 16 | M10 × 1.5 | 10 | 26 | 16 | 5 | M26 × 1.5 | 37 | 1/2 | 114 | 17 | 15 | 258 |
| 125 | 54 | 50 | 136 | 41 | 110 | 32 | 60 | 27 | 19 | 97 | 16 | M12 × 1.75 | 13 | 27 | 20 | 6 | M27 × 2 | 38 | 1/2 | 120 | 17 | 15 | 314 |
*If bumpers are attached to both sides of the piston for the rubber bumper type, the overall length is longer than the cylinder with air cushion as follows: ø32 (32‑mm diameter), ø40 (40‑mm diameter): 6 mm; ø50 (50‑mm diameter), ø63 (63‑mm diameter): 8 mm; ø80 (80‑mm diameter), ø100 (100‑mm diameter): 10 mm; ø125 (125‑mm diameter): 12 mm.
Rubber cushion
(Units: mm)
| Tube Inner Diameter (mm) | S | ZZ |
|---|---|---|
| 32 | 90 | 184 |
| 40 | 90 | 192 |
| 50 | 102 | 218 |
| 63 | 102 | 218 |
| 80 | 124 | 268 |
| 100 | 124 | 268 |
| 125 | 132 | 316 |
Precautions
- *Product pictures are of representational models.
- *See the SMC catalog for information other than that detailed above.