Guangdong Hongtu Technology Holdings Co., Ltd.

Guangdong Hongtu's core business is the development, design and manufacture of precision aluminium alloy die castings. The company is a leading domestic die-casting enterprise that integrates simultaneous engineering design, precision aluminium alloy die-casting forming, die design and manufacturing, machining, integrated assembly and intelligent manufacturing. Its products cover the automotive, communications and electromechanical sectors, and this family corresponds overall to the former baseline series 'precision aluminium alloy die castings'.

Materials cover ADC12, A380, AlSi10MnMg and other aluminium alloys; high-pressure die casting with clamping force from 1000T to 6800T, together with 7000T/12000T integrated die-casting cells; annual capacity of 120,000 tonnes of precision aluminium alloy die castings and 300 sets of dies; mass-production consistency meets IATF16949 system requirements.

• Automotive manufacturing
• Communications equipment
• Electromechanical equipment
• New energy vehicles

Aluminium alloy die castings for powertrain systems, aimed at the engines and lubrication/filtration systems of petrol and hybrid vehicles. Hongtu has full-process capabilities from product design, CAE analysis and die manufacturing through to precision machining, and supplies high-performance engine aluminium die castings to domestic and international OEMs.

Aluminium alloy high-pressure die casting; can be matched with more than 150 imported die-casting machines and over 1,700 sets of precision CNC machining equipment; supports one-shot forming of thin-walled, complex structural parts and high-precision machining; cylinder bores, water jackets and oil galleries are customised per engine platform.

• Petrol vehicle engines
• Hybrid vehicle powertrains
• Engine lubrication and filtration systems

Aluminium alloy die castings for transmission systems, covering the housings and valve bodies of automatic transmissions such as CVT and DCT. They offer high density and high dimensional stability, and serve transmission customers including JATCO, GETRAG and ZF.

Aluminium alloy high-pressure die casting with complex internal cavities and uniform wall thickness; matched precision CNC machining ensures valve body flatness and bore position accuracy, meeting transmission assembly and durability requirements.

• CVT continuously variable transmissions
• DCT dual-clutch transmissions
• Automotive transmission systems

New energy vehicle body structural parts produced by integrated die casting (giga-casting), a process that combines multiple stamped and welded parts into a single large aluminium casting, significantly reducing body-in-white weight and the number of weld spots. This is a product direction in which Hongtu focuses its integrated die-casting deployment; the company was invited to give a keynote report at the European International Giga-Casting Technology Conference.

Large integrated die casting using high-tonnage die-casting cells such as 6800T/12000T; heat-treatment-free aluminium alloy material; large projected area, complex structure and high requirements for dimensional accuracy and consistency.

• New energy vehicle body structural parts
• Body-in-white (BIW)
• Lightweight body structures

Aluminium alloy die castings for the drive systems of battery electric vehicles, including motor housings, motor front housings and water jacket assemblies, which provide lightweight, high-dissipation structural carriers for electric drive units.

Aluminium alloy high-pressure die casting; motor housings provide good sealing and heat dissipation; the water jacket assembly integrates cooling channels to meet the thermal management requirements of electric drive systems.

• Battery electric vehicle drive systems
• Motors and electric drive units
• Thermal management of new energy vehicles

Aluminium alloy die-cast structural parts for the traction battery pack (battery box / battery tray) of new energy vehicles. Hongtu supplies large die-cast structural parts such as battery trays and battery boxes to domestic and international NEV makers and battery customers, making this one of its core product directions in NEV lightweighting. Note: the official NEV and structural parts sections do not list battery box SKUs item by item; this family lists typical components based on the company's NEV business direction.

Large aluminium alloy die casting; the upper and lower battery tray housings use high-strength aluminium alloy, balancing structural strength, sealing and lightweighting; they can be formed by integrated die-casting processes and meet vehicle crash and load-bearing safety requirements.

• New energy vehicle traction battery packs
• Battery trays / battery boxes
• Traction battery structural parts

Aluminium alloy die castings and precision machining services supplied to information and communications solution providers, mainly base station RF cavities (TD/TRX cavities) and various structural parts with high heat dissipation performance.

Aluminium alloy die casting plus precision machining; cavity parts require high dimensional accuracy and good electromagnetic shielding / heat dissipation; heat-dissipation parts have a high specific surface area and flatness, with surface treatment meeting communications standards.

• Communications base station equipment
• RF / antenna cavities
• 5G / 4G communications heat dissipation

Precision aluminium alloy die castings for the electromechanical equipment industry. The official 'electromechanical equipment industry' section exists, but the AJAX back end on which its product list depends (/ajax/more.ashx?type=pro) is currently unavailable and a real browser rendering shows no specific SKUs either, so the individual products under it cannot be enumerated at present; this section is one of Hongtu's three main supporting product directions (automotive, communications, electromechanical).

Material grade: ADC12 / A380 aluminium alloy; Process: high-pressure die casting plus CNC precision machining; Minimum wall thickness: >= 2.0 mm; Tensile strength: >= 240 MPa; Yield strength: >= 150 MPa; Elongation: >= 1.5 %; Dimensional tolerance: ±0.05 mm; Unit weight: 0.2-15 kg; Surface finish: anodising / powder coating; Die casting machine tonnage: 800-3500 t

• Electromechanical equipment
• General industrial components

The official 'Other products' section covers precision aluminium alloy die castings beyond automotive, communications and electromechanical applications. Its product list likewise depends on the unavailable AJAX back end, so specific SKUs cannot be enumerated item by item.

Material grade: AlSi9Cu3 / A356 aluminium alloy; Process: high-pressure die casting plus precision machining; Minimum wall thickness: >= 2.5 mm; Tensile strength: >= 220 MPa; Yield strength: >= 140 MPa; Elongation: >= 1.0 %; Dimensional tolerance: ±0.08 mm; Unit weight: 0.5-20 kg; Surface finish: shot blasting / anodising / trivalent chromium passivation; Leak rate in sealing test: <= 5 sccm

• General precision aluminium alloy die-cast parts
• Custom parts outside automotive / communications applications