Neo Pan Pacific Metal Manufacturing Ltd.(Neo PPM) is a Hong Kong based company specialize in die casting and its related manufacturing processes.
The company is the Joint Venture between Pan Pacific Metal Manufacturing (Dongguang) Ltd. (50+ years’ experience) and Sun Wing Hing painting industrial (Shenzhen) Ltd. (30+ years’ experience). Neo PPM has a combination of metal casting and coating technological advances from both founding companies for the much demanding requirement of the industries.
1952 Founder Robin Pan started die casting technology in Shanghai district
1956 Engineered hydraulic cold chamber machine for communication and aerospace industries
1958 Established Modern Metal Manufacturer Ltd., one of the first Zine die casting factory in HK
1966 Established Pan Pacific Metal Manufacturers (Hong Kong) Ltd.
1968 Produced the first Zine die casting machine in HK
1978 Imported advanced machineries from Italy and Japan, startup Aluminum die casting dept.
1980 introduce the use of CAD/CAM, CMM and EDM for tooling development
1987 setup the first pilot manufacturing site in Dongguan Humen China (Tai Ping PPM)
1995 setup the first fully intergraded die casting factory in Dongguan Humen China (Zengkou PPM)
1999 ISO9000 certified
2000 setup CNC precision dept
2002 Established OPP, an Magnesium Application and Testing Site with LK Machinery (our Mg dept)
2003 OPP obtained QS9000 certificate
2008 Relocated to Dongguan Humen Chigan Fu Ma Industrial Park (Chigan PPM)
2009 Obtained ISO T/S 16949
2010 Obtained ISO 14000
2018 Relocate to Dongguan Humen Nanzha, JV between PPM and XYX to establish Dongguan Neo Pan Pacific Metal Manufacturing Ltd.
Strong engineering team with average 10+ years’ experience in the respective industries. Utilize DFM and APQP/PPAP tools for early product development.
Utilize the latest software in CAE/CAD/CAM and flow analysis.
• Precision CNC machines Centers and EDM machines for building tools, dies, jigs and fixtures in house.
• Complete control for tool quality, lead time as well as maintenance over the entire tool life.
• Hydraulic and mechanical presses
• Milling Machines
• CNC center
• Polishing and buff machines and vibrators for special finishing.
• 33m 450°C oven for Teflon type of coating curing
• 30m 350ºC rack type oven for power coating as well as wet paint.
• 33m 250°C oven for conventional coating curing
• Wet Paint / Powder Coating
• Automatic coating lines for both compressed air type and electro-static type.
• Automated clean room coating system (Class 10000)
• Automatic Chromate Line
• Assemble & Test per our customers’ specs as a semi-finished product
• Dedicated line solution
• Inspect & Package for Export Direct to Customers Overseas
• ISO 9001
• Coater Quality Approved by DuPont, Whitford and PPG
• RoHS Compliant
• Coordinating Measuring Machine
• Zinc/Aluminum/Magnesium die casting
Certificate Number: CN19/30787 Validity Date: 14 June 2022
Certificate Number: GP 3531 Issue 5 Validity Date: 14 June 2020
China – Hong Kong
G/F , Shop E4, Block 11-14 Tsuen Wan Centre Phase 2, 86 Tsuen King Circuit, Tsuen Wan
Telephone: (852) 28610231
Fax: (852) 28610092
China – Humen
Address: No.6, Lane 10, Wen Ming Rd., District 4, Nanzha Humen Town, Dongguan City, Guangdong, China.
Telephone: (86) 769 82888138
Fax: (86) 769 85115280
Office Hours: Monday-Friday from 8:00 am – 5:30 pm
Saturday and Sunday Closed
Die-casting alloy selection is based on the application and functionality of the product or part in question. Different metal have their own characteristic, in other words they all have their advantages and disadvantages. After selecting a sensible metal for production, selecting the right die-casting alloy is also a very crucial for ensuring that the part of product will meet the design specifications, since every alloy has its own physical and mechanical properties due to their distinct chemical compositions.
• Relatively lightweight (Density 2.7 g/cm3)
• High resistance to corrosion
• Good mechanical properties
• Good dimensional stability
• Good conductivity and heat capacity
• Suitable for heat sink, heaters, structural requirement for automotive,
power tools and electronics designs
• Density 6.5 g/cm3, not recommended for parts over 1 Kg
• Considered as the easiest to cast
• Longer tool life due to lower temperatures and pressures
• Ability to be produced in thin wall thicknesses and tighter tolerances
• Relatively cheap to produce comparing to Aluminum and Magnesium with the
• Suitable for electronic housing, connectors, home appliances’ handles and
• Lightest weight among commonly used structural metal (Density 1.8 g/cm3, 30% lighter than aluminum)
• Thin wall casting, further reduce weight up to 50% with proper design comparing to conventional Al casting
• High strength to weight ratio
• Excellent damping ability
• EMI shielding Ability
• Suitable for handheld devices, weight reduction solution for automotive
and electronic industries
Tool life depends a lot on product design, material use and the quantity we produce at each batch.
Generally speaking, the thinner the wall, and/or the more complex the parts, the shorter the tool life.
Temperature also plays a major factor in tool steel erosion, while Aluminum has a higher casting temperature, its tooling life tends to be shorter, for example.
Here is a general tool life range for each material:
Aluminum: 60,000-100,000 shots
Zinc: 500,000 to 1 million shots
Magnesium: 100,000-200,000 shots
Trimming tool: 300,000 – 1 million
Jigs & fixture: with proper maintenance, pretty much forever.
Whether a tool can be used depends also on the quality or customer’s acceptance level. During different production stages there will be crack,erosion and deformation on the tool and parts. As long as there is a good communication between producer and customer, tool life can be extended with tooling design and quality level without added a lot of cost.
We are not a greedy company, we don’t 1 million parts per order, however,there are limitation in our industry and a lot of negative effects when we produce at small batches. There are thermal shocks, scraps and wares on the tool, at extreme cases those will reduce tool life to half. Die casting is supposed to be a highly cost effective high volume metal solution. To get the best from die casting, we need high volume in order to achieve the best balance in cost and quality for you.
Depending on the product size, we recommend the following MOQ
Aluminum： MOQ 5,000-10,000 shots per order, total consumption of a tooling within 2-3 years.
Zinc: MOQ 50,000 – 100,000 per order, total consumption of a tooling within 3-5 years.
Magnesium: MOQ 5,000 -10,000 shots per order, total consumption of a tooling within 2-3 years.
For very low quantity, we recommend customer to choose other manufacturing
method such as conventional casting or CNC machined parts.
Can I use the same tool for different material?
The answer is Yes and No.
Yes: If the tool can fit on the machine, it will be possible to put all
three materials with the same tool.
No: There are a lot of know-how for each material, with flow, venting and
heat balance and such. You may be able to get some parts, but there will be a lot of hidden defects.
We occasionally switch material for customer as testing and project
development. Please consult our engineering team for the technical details.
Comparing to conventional gravity sand casting, die casting is already considered as the “thin wall solution” as thickness can go from 5-10 mm down to 2-2.5 mm. In recent years, there are many other “thin wall solution” that can go to the extreme.
Thinnest possible wall thickness:
Zinc: 0.5 mm
If PPM, we DO NOT have the machinery and expertise to achieve these extreme level. Usually those are very specialized processes that are for some narrow and niche market. There are also limitation in shape, part function and possible trade-off in terms of cost, scraps, and lower tool life. However, PPM is not completely technologically backward, we can still achieve a certain level of thin wall for a more normal range of products.
Aluminum: normal wall thickness 2-2.5mm, minimum 0.8-1.0mm
Zinc: normal wall thickness 1.5-2mm, minimum 0.8-1.0 mm
Magnesium: normal wall thickness 1.2-1.8mm, minimum 0.6-0.8mm
*thin wall casting is limited to certain size and shape. Please consult our
engineering team for feasibility study.
• Teflon® coating
• Powder coating
• Wet Paint coating
• Electrolytic plating