PPS Injection Molding
Services On Aria
PPS injection molding is a powerful solution for manufacturing high-performance components that excel in demanding environments.
We specialize in PPS injection molding, offering precision-engineered solutions tailored to meet the unique demands of your projects.
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What is PPS Plastic?
Polyphenylene Sulfide (PPS) is a high-performance thermoplastic known for its exceptional thermal stability, chemical resistance, and mechanical strength.
PPS injection molding is a specialized manufacturing process that leverages these properties to produce precision components for demanding industries such as automotive, electronics, aerospace, and industrial equipment. This page explores the benefits, applications, and key considerations of PPS injection molding.
Description
Full Name
Polyphenylene Sulfide
Process
Finishing options
Mold texturing，Pad printing，Laser engraving，Electroplating, Bead Blasting
Mold Part Max Part Size
300 mm x 300 mm x 300 mm
Prices
$$
Features
Appearance
Off-white or light beige color
Strengths
thermal stability, chemical resistance, mechanical strength, electrical insulation
Minimum Wall Thickness
1mm
Elongation at Break
1% to 3%
Density
1.35 g/㎤
Advantages of PPS Injection Molding
PPS is a standout material for injection molding due to its unique properties:
High Thermal Stability
PPS can withstand continuous operating temperatures up to 220°C (428°F), making it suitable for high-heat environments.
Chemical Resistance
It is highly resistant to acids, bases, and solvents, ensuring durability in harsh chemical conditions.
Mechanical Strength
PPS offers excellent dimensional stability, low creep, and high rigidity, even under stress.
Electrical Insulation
PPS is inherently flame retardant, meeting strict safety standards for critical applications.
Flame Retardancy
PPS is inherently flame retardant, meeting strict safety standards for critical applications.
Applications of PPS Injection Molding
PPS injection molding is widely used across industries that require reliability and precision:
PPS Injection Molding Material Properties
PPS Plastic Properties
Value
Tensile Strength (Yield) （MPa）
55.2 - 195
Flexural Modulus（GPa）
2.50 - 5.52
Impact Resistance (Izod Impact, Notched)
0.5 ft-lbs/in
Maximum Service Temperature（℃）
200 - 240
Chemical Formula
[C 6H 4S] n + 2n NaCl
Glass Transition Temperature（℃）
90
Heat Deflection Temperature（℃）
110 - 135
Drying Temperature（℃）
135 – 163
Drying Time（hr）
2 – 3
Mold Temperature（℃）
125
Melt Temperature（℃）
280
Injection Pressure（MPa）
40 -70
Injection Speed（ mm/sec）
150
Cooling Time（S）
15～30
Scrap Quantity（mm）
3～10
Back Pressure（MPa）
5～12
Clamping Force（ton/in2）
4～5
Return Speed (rpm)
60～80
Shrinkage
0.4–0.8%
PPS Injection Molding Design Guide
Wall Thickness
Recommended wall thickness: 1.5–3.0 mm.
Uniform wall thickness is critical to avoid warping, sink marks, or stress concentrations.
Avoid abrupt changes in thickness; use gradual transitions.
Ribs and Bosses
Rib thickness should be 50–60% of the adjacent wall thickness.
Bosses should have a wall thickness of 40–60% of the main wall.
Use generous fillets at the base of ribs and bosses to reduce stress concentrations.
Draft Angles
Minimum draft angle: 1–2° for smooth surfaces.
For textured surfaces, increase the draft angle by 1° per 0.025 mm of texture depth.
Radii and Corners
Use generous radii (minimum 0.5 mm) to reduce stress concentrations and improve flow.
Sharp corners should be avoided to prevent cracking and improve mold filling.
Gate Design
Gate size: Typically 0.5–1.5 mm depending on part size and wall thickness.
Gate location: Position gates to ensure uniform flow and minimize weld lines.
Common gate types: Submarine, edge, or tab gates.
Shrinkage
PPS has low shrinkage: 0.1–0.3%.
Account for shrinkage in mold design to achieve dimensional accuracy.
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