Description

ISO 6432 Series: Stainless Steel Mini Cylinder

High-Precision Linear Actuator for Corrosion-Resistant & Space-Constrained Applications

The ISO 6432 Series (comprising MI and MAC variants) is a range of high-durability pneumatic mini cylinders designed for precision automation. Bore sizes from ø8mm to ø25mm are strictly manufactured in accordance with ISO 6432 standards, ensuring global interchangeability. These cylinders feature a robust stainless steel construction and a compact, “riveted rolling” packed structure to provide high mechanical reliability and leak-proof performance in high-cycle environments.

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Technical Specifications

The series is engineered for unlubricated operation under the following industrial parameters:

Feature	Specification Details	Source
Bore Sizes (mm)	8, 10, 12, 16, 20, 25 (Standard ISO) / 32, 40, 50, 63
Action Type	Double Acting, Single Acting (Push/Pull), Double Rod, Adjustable Stroke
Fluid	Clean Air (Filtered by 40μm filter element)
Operating Pressure	Double Acting: 0.1 – 1.0 MPa (14.5 – 145 psi)<br>Single Acting: 0.2 – 1.0 MPa (28 – 145 psi)
Proof Pressure	1.5 MPa (217 psi)
Temperature Range	-20°C to 70°C
Speed Range	Double Acting: 30 – 800 mm/s<br>Single Acting: 50 – 500 mm/s
Cushion Type	Adjustable Air Cushion (MIC/MAC series) or Fixed Bumper
Stroke Tolerance	Stroke ≤ 150: +1.0/0 mm; Stroke > 150: +1.4/1.5/0 mm

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Key Engineering Advantages

Advanced Construction: The cylinder barrel is joined to the front and back covers using a riveted rolling packed structure, providing a high-integrity connection compared to traditional tie-rod designs.
Corrosion Resistance: The barrel is constructed from SUS304 (bore 8–12) or SUS316L/Stainless Steel (other sizes), while the piston rod utilizes SUS304, making the series ideal for general corrosive working environments.
Precision Cushioning: Models with adjustable cushions (e.g., MIC/MAC) use a needle valve system to suppress vibration and impact at the stroke ends, extending the service life of both the cylinder and the machinery.
Compact Integration: Features integrated fixed bumper pads to reduce mechanical noise and impact in non-cushioned models.
Standardized Mounting: Fully compatible with ISO 6432 standard accessories including Pivot (CA), Perpendicular 90° (U), Axial air-in (R), and Round-end (CM) back-cover modes.

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Theoretical Cylinder Thrust (Newton)

Force values based on standard operating pressures (MPa):

Bore Size	Rod Size	Action	0.3 MPa	0.5 MPa	0.7 MPa
12 mm	6 mm	Push Side	33.9 N	56.5 N	79.1 N
16 mm	6 mm	Push Side	60.3 N	100.5 N	140.7 N
20 mm	8 mm	Push Side	94.2 N	157.1 N	219.9 N
25 mm	10 mm	Push Side	147.2 N	245.4 N	343.4 N
40 mm	16 mm	Push Side	377.0 N	628.3 N	879.6 N

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Materials of Construction

Component	Material	Notes
Cylinder Barrel	Stainless Steel (SUS304 / SUS316L)	High-precision, corrosion-resistant
Piston Rod	SUS304 Stainless Steel	Hardened for durability
Front/Back Cover	Aluminum Alloy	Lightweight and high-strength
Seals / O-Rings	NBR (Nitrile Rubber)	Industrial grade
Piston	SUS303 / Aluminum Alloy	Varies by bore size
Bumper	TPU (Thermoplastic Polyurethane)	Integrated impact absorption

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Installation & Mounting Options

The series supports a full range of standardized ISO brackets for diverse integration:

LB Type: Foot bracket for base mounting.
FA Type: Front flange mounting.
SDB Type: Pivot bracket for oscillating motion.
TC Type: Trunnion mounting.
Sensor Compatibility: Supports rail-mount and band-mount auto switches (e.g., CMSG, DMSG, EMSG series) for position detection