Plastic parts for consumer electronics, appliances, IoT devices and consumer goods — from 160T to 400T+ presses.
Mold Making
In-house tooling in domestic and imported steels (P20, 718H, S136, ASSAB grades). You own your molds — in writing.
Not sure which process fits your part? The quarterly SunOn Cost Index publishes our real material and processing prices so you can see the economics yourself.
One part, three stages: raw casting → CNC → surface finish4-axis CNC post-machining on our own floorFlatness checked before any part leaves the building
From quote to shipping
Step 1 — DFM review (free with every quote). Before we commit to tooling, I review your design for issues that would raise cost or hurt quality. This alone typically saves $10,000–80,000 in tooling modifications.
Step 2 — Tooling quote. A detailed quote with the steel grade named, cavity options, and surface finish grades — so you can compare it honestly against any other quote.
Step 3 — Tooling fabrication. The mold is yours: ownership is written into the contract, and it moves with you if you ever leave.
Step 4 — Sample approval. You approve first samples against the spec. We don't move to production until you confirm.
Step 5 — Production and shipping. Quality inspection before every shipment, with clear acceptance criteria agreed up front.
The equipment, in full
Most manufacturing pages say "advanced equipment." Here is the actual list, because it is the only way to judge whether a factory can hold what your drawing asks for.
CNC machining and tooling
Machine
Qty
Accuracy
CNC machining centres
29
≤0.015mm
High-speed CNC (Mori Seiki)
13
≤0.005mm
Sinker EDM
48
≤0.015mm
Mirror EDM (Mitsubishi)
8
≤0.005mm
Double-head EDM
2
—
Wire EDM
9
≤0.015mm
Low-speed wire (AgieCharmilles)
6
≤0.005mm
Milling
31
≤0.015mm
Grinding
30
≤0.002mm
Drilling / deep-hole drilling
9 / 3
—
Mould fitting machine
1
—
The CNC hall. 29 machining centres plus 13 high-speed — this is what the table above looks like.
Die casting
Type
Range
Qty
Hot chamber (zinc)
138–250T
2
Cold chamber (aluminium)
200–800T
5
Plus in-line tapping, drilling, sand blasting, polishing, high- and low-temperature painting, ultrasonic cleaning, two production lines and a drying line.
Cold chamber, mid-cycle. Aluminium enters at roughly 700°C and fills the die in under a second.
Injection moulding
79 machines from 50T to 1200T (Haitian, Huada, Welltec, LG, Zhen Xiong, plus Nissei high-speed all-electric), with shot weights from 119g to 4,500g. Ten additional two-shot machines, 140T–600T.
One of six CMMs. Dimensional data before anything ships — with the acceptance criteria agreed in advance.
Metrology and testing
6 CMMs (to ≤0.0005mm), 6 vision measuring systems, optical projectors, XRF and RoHS analysers, steel composition analyser, dynamic balance tester, temperature test cabinet.
30 tool engineers, 15 project engineers, 15 CNC programmers, 6 product designers. Design on UG, Pro/E, CATIA, SolidWorks, AutoCAD and Moldflow — so fill and warpage get simulated before steel is cut, not discovered after.
A production run, laid out. Consistency across thousands of parts is a process question, not an inspection question.
MOQs negotiated by product, not by policy — early-stage runs are welcome
The DFM review is included, not an upsell
English for the founder relationship, Chinese for the factory floor — no translation gap
On-site customer support in Germany, and work in German, English and Chinese — for European founders, no day of lag on every question
Quarterly published cost data, so you always know the market
Certification
The group holds ISO 9001:2015 and ISO 14001:2015 (Intertek, UKAS-accredited) and IATF 16949, the automotive quality standard.
One thing worth saying plainly, because I tell founders to check it on every supplier: the ISO scope covers mould making and injection moulding, not die casting. If certification of the casting process itself is a requirement for your product, say so early and we will talk about whether we are the right fit. Why the scope page matters →
Get a manufacturing quote
Free DFM review included. Bring your CAD files or drawings — I'll tell you what your part should cost and why.
