Manufacturing Capabilities -KastMfg Nanjing Facility

KastMfg operates a fully integrated 28,000 m² manufacturing facility in Nanjing, Jiangsu Province, China. All core processes -tooling fabrication, die casting, CNC machining, surface finishing, and quality inspection -are performed in-house, eliminating subcontractor dependencies and giving customers a single accountable supply source.

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Facility at a Glance

Parameter	Specification
Total floor area	28,000 m²
Die casting machines	23 units
Machine tonnage range	80T -1,600T
Alloys processed	Aluminum (A380/A360/A413/ADC12), Zinc (Zamak 3/5/ZA-8), Magnesium (AZ91D/AM60B)
Annual casting capacity	12,000+ tonnes
Tooling shop area	4,500 m²
CNC machining centers	18 units
Employees	320+
Annual shipments	8 million+ parts
Export markets	30+ countries

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Die Casting Machines

Cold Chamber (Aluminum & Magnesium)

Tonnage	Quantity	Max Shot Weight	Primary Alloys
160T	4	2.5 kg	A380, ADC12, AZ91D
250T	3	4 kg	A380, A360, AZ91D
400T	2	6 kg	A380, A413
630T	2	10 kg	A380, A413
800T	1	14 kg	A380
1,000T	1	20 kg	A380 (structural)
1,600T	1	30 kg	A380 (large structural)

Hot Chamber (Zinc)

Tonnage	Quantity	Max Shot Weight	Primary Alloys
80T	4	0.5 kg	Zamak 3, Zamak 5
160T	3	1.2 kg	Zamak 3, Zamak 5
250T	2	2 kg	Zamak 5, ZA-8

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Tooling Shop

KastMfg designs and fabricates all production tooling in-house. We do not outsource die fabrication.

Equipment	Quantity	Capability
CNC machining centers (tool room)	15	H13/P20 cavity and core machining
EDM (wire cut)	4	Fine detail, narrow slots
EDM (sinker)	3	Deep cavities, complex geometry
Surface grinder	2	Parting face flatness
CMM (tool room)	1	Die dimension verification
Mold flow simulation	Software	Pre-steel virtual validation

Tooling lead times:

Tool Type	Steel Grade	Lead Time
Prototype single-cavity	P20	3- weeks
Production single-cavity	H13	5- weeks
Production multi-cavity	H13	6- weeks
Slide/insert tooling	H13/S7	2- weeks

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CNC Machining

Equipment	Specification	Quantity
3-axis VMC	Up to 1,000 x 600 x 500 mm	10
4/5-axis machining center	Full simultaneous 5-axis	4
CNC turning center	Up to Ø500 x 800 mm	3
Robotic deburring cell	Automated	1

Machining capabilities: milling, drilling, tapping (to M30), boring (H6/H7), thread milling, countersinking, flatness grinding of sealing faces.

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Surface Finishing

All finishing operations are performed in-house or at managed partner facilities with direct quality oversight.

Process	Specification
Shot blasting	Steel shot, various grit sizes
Powder coating	Electrostatic, cured 180-200°C, RAL/Pantone matching
Anodizing Type II	5-15 μm, clear or colored
Anodizing Type III (Hard)	25-100 μm, hardness HRC 60+
Chromate conversion (Alodine)	Per MIL-DTL-5541
E-coating (Electrocoat)	Epoxy, full internal coverage
Vibratory finishing	Deburring and surface smoothing

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Quality Inspection

Equipment	Quantity	Application
CMM (Hexagon / Zeiss)	2	3D dimensional inspection, GD&T, FAI
OES Spectrometer	1	Alloy chemistry per melt
Industrial X-ray (DR)	1	Internal porosity screening
Tensile testing machine	1	Mechanical property verification
Pressure decay tester	4	Hydraulic/pneumatic leak testing
Roughness tester	3	Surface finish Ra verification
Vision measurement system	2	High-speed 2D inspection
Salt spray chamber	1	Corrosion testing per ISO 9227
Hardness tester	2	Rockwell/Brinell

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Part Size and Weight Range

Parameter	Aluminum	Zinc	Magnesium
Min wall thickness	1.2 mm	0.4 mm	0.8 mm
Max part size	800 x 600 mm	400 x 300 mm	500 x 400 mm
Min part weight	0.05 kg	0.005 kg	0.05 kg
Max part weight	25 kg	5 kg	8 kg
Dimensional tolerance	CT4-CT6	CT3-CT5	CT4-CT6

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Contact

Email: yaoqingpu1983@gmail.com | Phone: +86 138 1403 4409 No.6, Rungu Road, Nanjing, China