Shentong Technology Group Co., Ltd.

An engine air-intake system component that evenly distributes the air-fuel mixture or clean air to each cylinder's intake port, guiding and balancing the airflow. Manufactured with precision injection moulding combined with vibration welding, rotary welding, hot insertion and dust-removal processes.

System: engine air intake system; Core function: even airflow distribution to each cylinder intake port; Process: precision injection moulding + vibration welding / rotary welding / hot insertion; Material: glass-fibre reinforced nylon (PA6-GF30 class, typical for the category); Operating temperature: -40 to 120 degrees C (typical)

• Engine air intake systems of ICE and hybrid vehicles

A crankcase ventilation (PCV) component that separates oil from the blow-by gas leaving the crankcase, reducing polluting emissions, preventing oil emulsification and regulating crankcase pressure. Produced with precision injection moulding combined with infrared welding and high-frequency thermal insertion.

System: crankcase ventilation (PCV); Core function: oil-air separation and crankcase pressure regulation; Process: precision injection moulding + infrared welding / high-frequency thermal insertion; Material: oil-resistant engineering plastic (PA66 class, typical); Separation efficiency: >=90% (oil mist droplets, typical)

• Crankcase ventilation systems of ICE and hybrid vehicles

An active oil separator for new energy vehicles based on FOC vector control. High-speed centrifugal separation achieves ultra-low oil consumption, while the integrated PMSM electronic control enables active operation, self-diagnosis, overvoltage/overload protection and start-stop control. Built by secondary injection moulding with laser welding, shrink-fit assembly and riveted joints.

Oil consumption: 0.5 g/h; Separation efficiency: 90% at 0.5 micron; Electronic control: PMSM motor + FOC vector control; Protection: self-diagnosis / overvoltage-overload protection / start-stop control; Process: secondary injection moulding + laser welding / shrink-fit / riveting

• Crankcase ventilation of new energy vehicles (ultra-low oil consumption)

Located at the very bottom of the engine in the lubrication system, this plastic housing stores and exchanges engine oil. As the oil reservoir closing the crankcase, it cuts vehicle weight and radiated noise and withstands high-speed stone impact. Made by integrated insert moulding with ultrasonic riveting.

System: engine lubrication system; Core function: oil storage and exchange; Material: glass-fibre reinforced nylon (PA66-GF30 class, typical for plastic oil pans); Process: integrated insert moulding + ultrasonic riveting; Weight saving: about 30% vs stamped steel oil pan (typical); Temperature: -40 to 150 degrees C (typical)

• Engine lubrication systems of ICE and hybrid vehicles

An engine air-intake duct that guides the airflow and provides routing, sealing and reduced exhaust emissions. Manufactured by precision injection moulding combined with vibration welding.

System: engine air intake system; Core function: airflow routing / sealing / reduced emissions; Process: precision injection moulding + vibration welding; Material: reinforced nylon / rubber composite duct (typical for the category); Working pressure: 0.3 to 2.5 bar (typical for boosted intake ducts)

• Intake ducting of turbocharged engines

An engine cooling system part that routes and cools the coolant: it automatically adjusts how much coolant enters the radiator according to coolant temperature, changing the circulation range and the heat rejection capacity so the engine works within the right temperature window. Moulded with a forced-de-moulding nozzle process.

System: engine cooling system; Core function: automatic coolant flow control / circulation range switching; Valve opening temperature: 82 to 95 degrees C (typical); Process: injection moulding with forced nozzle de-moulding; Temperature resistance: -40 to 135 degrees C (typical)

• Engine cooling systems of ICE and hybrid vehicles

A filter fitted at the inlet of the oil pump suction pipe, submerged below the oil level in the pan. It screens out mechanical debris and gum, keeps the lubricant clean and extends its service life. Produced by integrated insert moulding with infrared and vibration welding.

System: engine lubrication (oil pump inlet); Core function: removal of mechanical debris and gum; Filtration: 80 to 150 mesh screen (typical); Process: integrated insert moulding + infrared welding / vibration welding; Material: oil-resistant engineering plastic (PA66 class, typical)

• Engine lubrication systems of ICE and hybrid vehicles

Interior trim panel using PC with a silicone hard coating that delivers superior piano-black appearance and performance at thinner wall thickness. NFC and other functional modules can be integrated for smart human-machine interaction, while the simplified mould structure makes injection moulding easier.

Material: PC + silicone coating; Weight saving: about 15% (vs conventional solution); Appearance: piano black; Integrated function: NFC smart interaction; Process: precision injection moulding

• Smart cockpit interiors and frameless door systems

Center B-pillar trim in PC with silicone hard coating for superior piano-black quality at thinner walls and about 15% weight saving, improving the drag coefficient. Matched to the body side panel without touching the door, it avoids window-frame joints and, integrating front and rear door trims into one piece, enables frameless doors. NFC modules add smart interaction.

Material: PC + silicone coating; Weight saving: about 15%; Appearance: piano black; Drag coefficient: better than conventional window-frame solution (manufacturer claim); Integrated function: NFC smart interaction

• Frameless doors / smart cockpit side interior systems

Rear side window in PC + PC/ABS two-shot moulding with a silicone coating that cuts weight by more than 20%. Colours are freely customisable beyond piano black, and excellent formability allows double-curvature and other complex surfaces (integrating the window trim), improving aerodynamic efficiency and energy economy. Impact resistance is outstanding (6 mm bullet-resistant, 8 mm blast-resistant), and over its life cycle each kilogram of PC emits 14 to 22 kg less CO2 than ordinary glass.

Material: PC + PC/ABS two-shot moulding + silicone coating; Weight saving: >=20% (vs same-size glass); Impact resistance: 6 mm bullet-resistant / 8 mm blast-resistant; CO2 reduction: 14 to 22 kg less per kg of PC over the full life cycle vs ordinary glass; Styling: double-curvature and complex surfaces mouldable; Colour: customisable

• Lightweight side glazing of new energy vehicles (polycarbonate glass replacement)

A part that tidies up and beautifies the engine compartment, significantly enhancing perceived vehicle quality and user experience. Three typical layouts - perimeter cover, semi-cover and full cover - are produced by single- or two-colour injection moulding with textured surfaces for a premium look.

Layout: perimeter cover / semi-cover / full cover; Process: single-colour / two-colour injection moulding; Surface: textured decoration; Material: heat-resistant modified PP (typical for engine-bay parts); Temperature: -40 to 120 degrees C (typical)

• Engine compartment dressing and protection

The core optical component of automotive head-up display systems. Advanced freeform micro-nano machining and high-reflectivity coating deliver micron-level surface accuracy, nanometre-level roughness and high reflectivity, guaranteeing image quality and brightness.

Surface accuracy: RMS < 0.05 micron (typical for the category); Surface roughness: Ra < 10 nm (nanometre level); Reflectivity: >=93% (high-reflection coating, typical); Material: glass substrate + high-reflectivity coating; Machining: freeform micro-nano processing

• W-HUD / AR-HUD head-up display systems

A core optical component of automotive head-up displays. Advanced freeform micro-nano machining and cold-mirror coating achieve micron-level form accuracy and nanometre-level roughness; high infrared transmission solves sun-load backflow, preserving image quality and brightness.

Surface accuracy: RMS < 0.05 micron (typical for the category); Surface roughness: Ra < 10 nm; Spectral behaviour: high visible reflection + high infrared transmission (cold-mirror coating, suppresses sun-load backflow); Material: glass substrate + cold-mirror coating; Machining: freeform micro-nano processing

• W-HUD / AR-HUD systems (sun-load backflow suppression)

A window optic for automotive lidar with a piano-black appearance: visible light cannot pass through, while the hard, highly impact-resistant surface protects the sensor without disturbing the laser returns.

Appearance: piano black; Visible-light transmittance: <=1% (opaque, typical); Near-infrared transmittance: >=90% (typical for 905 nm / 1550 nm lidar windows); Surface: high hardness, impact resistant

• Vehicle-mounted lidar (external / integrated windows)

Using spatial optical display technology, it breaks through space constraints to build a cinema-grade viewing experience inside the headrest, offering comfortable entertainment without motion sickness.

Display technology: spatial optical display (light-field imaging); Mounting: headrest integration; Experience: cinema-grade immersive viewing / comfortable, motion-sickness-free (manufacturer claim); Virtual image distance: >=1 m (typical for automotive light-field displays); Visual health: depth imaging reduces eye strain

• Rear-passenger entertainment displays (headrest light-field screens)

Integrating the door lock, controller, soft-closing unit and electric-release unit, the split architecture gives more flexible packaging space and high module extensibility for function upgrades.

Integrated units: door lock + controller + soft-closing + electric release; Architecture: split type (flexible packaging); Extensibility: highly modular; Operating voltage: 9 to 16 V DC (typical for 12 V vehicle systems); Soft-closing noise: <=45 dB (typical)

• Doors / powered tailgates with soft-closing and electric release (smart entry actuators)

Biometric key solution: an integrated 3D binocular IR module quickly recognises the face to authenticate the user and unlock the vehicle. Digital key solution: placing an NFC card or phone at the pillar's NFC sensing area unlocks or locks all doors even with the vehicle off, while optoelectronic display feedback shows recognition status, battery indication and welcome effects.

Recognition: 3D binocular IR face recognition + NFC digital key; Face recognition distance: <=1 m (typical); NFC frequency: 13.56 MHz (ISO 14443 class, typical); Display feedback: optoelectronic display (battery indication / welcome effect); Trigger condition: unlock/lock all doors with the vehicle off

• Smart entry (face / NFC authentication and door locking), welcome interaction