Electric bikes

Electric motorcycles

Electric scooters

车架

Frame manufacturing

FRAME MANUFACTURING

The frame is the core of the product and the foundation of all performance and safety. PXID operates a fully integrated manufacturing system that covers every stage from raw materials to finished frames. By controlling key processes—including CNC machining, automated welding, and heat treatment—we manage every parameter with strict precision. Every frame we deliver meets exceptional strength, millimeter-level accuracy, and long-term durability, giving your product unrivaled competitiveness.

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Material Cutting & Pre-Processing

We use high-precision laser cutting and CNC tube-processing equipment to prepare high-strength steel or aluminum alloy materials. Each tube is cut and shaped to exact design specifications, ensuring dimensional and angular accuracy. This provides a solid foundation for welding consistency and structural performance in subsequent stages.

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Profile forging process

Profile forging is used for high-stress areas such as head tubes and bottom brackets. Through high-temperature heating and high-pressure forging, the metal structure becomes denser, improving hardness and fatigue resistance. After forging, components undergo machining and heat treatment to achieve strict tolerance accuracy and structural performance, reducing weight while significantly enhancing impact resistance.

 

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Extrusion Forming Process

Extrusion is ideal for lightweight aluminum frames. Heated aluminum is extruded into tubes with various wall thicknesses and cross-sections, then cut, bent, and welded into frame structures. A T6 heat treatment process follows to increase strength and consistency. Extruded structures are widely used in e-bikes and scooters for their balance of light weight, strength, and clean aesthetics.

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Hydroforming Process

Hydroforming enables complex tube shapes that traditional methods cannot achieve. Aluminum tubes are placed in molds and expanded by high-pressure fluid to form precise shapes such as large-radius bends or integrated mid-sections. After forming, the tubes are cut, welded, and heat-treated to ensure outstanding durability and torsional rigidity, making the process ideal for e-motorcycles and advanced frame designs.

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Gravity Casting Process

Gravity casting is used to produce high-strength aluminum components, including frame sections, wheel hubs, and battery brackets. Molten metal flows into molds under gravity, forming high-precision castings with complex geometry. This process provides excellent structural integrity, ductility, and impact resistance for demanding applications.

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Frame Welding Process

PXID combines TIG/MIG manual welding with automated robotic welding systems. Manual welding ensures precision in complex areas, while automation enables consistent, large-scale production. Weld seams are refined through grinding and heat treatment to enhance strength and stability. This dual-process approach ensures both craftsmanship and repeatability, meeting industry standards for structural performance.

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T4 Frame Heat Treatment Line

After welding, frames enter the T4 heat treatment line. Through controlled heating and rapid cooling, the process restores the material’s ductility, relieves welding stress, and improves dimensional stability. The restored material state provides optimal conditions for subsequent forming and final-strength treatments.

T4 Frame Heat Treatment Line
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T6 Frame Heat Treatment Line

Following T4 processing, frames undergo T6 heat treatment. Higher-temperature heating and artificial aging significantly increase the aluminum alloy’s strength and hardness. This ensures reliable performance under extreme riding conditions and provides essential durability for high-load applications.

T6 Frame Heat Treatment Line

Frame Durability Validation System

PXID conducts horizontal and vertical fatigue, drop, fork impact, and vibration tests, combined with full-vehicle road testing to simulate real-world conditions.

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Submit a request

Our customer care team is available Monday to Friday from 8:00 am - 5:00 pm PST to answer all email inquiries submitted using the form below.