RINGHOFFER Verzahnungstechnik GmbH & Co KG

Germany, 72664 Kohlberg

Competencies

Technologies

Turning

Technologies	Lotsize	Length	Diameter	Weight
Turning	1–10,000	1–3,000 mm	1–400 mm	—
Automatic turning (bar)	1–100 k	5–200 mm	5–100 mm	—
Full-range turning (including milling)	1–1,000	1–4,000 mm	1–400 mm	—
Hard turning	1–1 M	5–300 mm	5–450 mm	—
Broaching	1–100 k	5–300 mm	5–300 mm	—
Centering / end facing	1–1 M	5–1,000 mm	5–450 mm	—
Shaft machining	1–100 k	5–1,000 mm	5–450 mm	0–200 kg

Gear Making

Technologies	Lotsize	Length	Width	Height	Diameter	Weight	Material thickness
Cylindrical gear / spur gear	1–10,000	1–500 mm	from 0 mm	from 0 mm	1–500 mm	0–200 kg	from 0 mm
Internal teeth	1–1,000	1–200 mm	—	—	1–350 mm	0–20 kg	—
Bevel gear wheel	1–10,000	1–400 mm	from 0 mm	from 0 mm	1–400 mm	0–150 kg	from 0 mm
Cogged belt pulley	1–1,000	1–200 mm	—	—	1–250 mm	0–20 kg	—
Rack (toothed)	1–10,000	1–3,000 mm	1–80 mm	1–80 mm	1–400 mm	0–250 kg	from 0 mm
Worm gear	1–1,000	1–400 mm	—	—	1–250 mm	0–10 kg	—

Finishing

Technologies	Lotsize	Length	Width	Height	Diameter	Weight	Material thickness
External cylindrical grinding	1–10,000	1–3,000 mm	from 0 mm	from 0 mm	1–500 mm	0–500 kg	from 0 mm
Internal cylindrical grinding	1–1,000	1–400 mm	from 0 mm	from 0 mm	1–400 mm	from 0 kg	from 0 mm
Surface grinding machine	1–100 k	1–6,000 mm	1–100 mm	1–100 mm	—	0–150 kg	—

Measuring & Testing

Technologies	Length	Width	Height	Diameter	Weight
Measuring / testing	2–3,000 mm	2–120 mm	2–120 mm	2–500 mm	0–40 kg

Threading

Technologies	Lotsize	Length	Width	Height	Diameter	Weight	Material thickness
Thread grinding	1–100 k	1–1,500 mm	—	—	1–300 mm	0–80 kg	—
Thread whirling	1–100 k	5–300 mm	—	—	5–250 mm	0–40 kg	—
Worm milling	1–10,000	1–3,000 mm	from 0 mm	from 0 mm	1–500 mm	0–150 kg	from 0 mm
Worm rolling	1–1,000	1–1,500 mm	—	—	1–350 mm	—	—
Worm grinding	1–1 M	1–1,000 mm	—	—	1–350 mm	0–80 kg	—

Assembly Group Manufacturing

Technologies	Lotsize	Length	Width	Height	Diameter	Weight	Material thickness
Adhesive bonding	1–100 k	5–1,000 mm	5–100 mm	5–100 mm	5–250 mm	0–50 kg	5–1,000 mm
Shrinking / cold-stretching	1–10,000	5–1,000 mm	—	—	5–500 mm	0–50 kg	—

Drilling / Sawing

Technologies	Lotsize	Length	Width	Height	Diameter	Weight
Sawing	1–100 k	1–3,000 mm	2–100 mm	2–100 mm	5–250 mm	—
Drilling / threading / tapping	1–10,000	1–3,000 mm	1–500 mm	1–1,000 mm	—	0–250 kg

Surface Treatment

Technologies	Lotsize	Length	Width	Height	Weight
Sand blasting	1–100 k	1–60,000 mm	1–100 mm	1–100 mm	0–80 kg

Materials

Advanced Materials

Nickel alloy (Inconel, Monel, Hastelloy)Silicium

Steel

Structural steelCase hardening/tempering steelStainless steel (rust-proof V2A)Stainless steel (rust-proof V4A)Free-cutting/mild steelTool steelSpring steelCold extruding steel

Plastics/synthetic materials

ThermoplasticsThermosetsElastomersGlass fibre-reinforced plasticCarbon fibre-reinforced plasticWood-Plastic-Composites (WPC)

Light metals

Aluminium and aluminium alloysMagnesium and magnesium alloysTitanium and titanium alloys

Cast metals

Cast steelCast iron

Heavy metals

Copper-zinc alloys (brass)Copper and copper alloysZinc and zinc alloysSolder

Precious metals

Other precious metals

Industries

Hydraulic and pneumatic industryAutomation and control engineeringElectrical industryChemical industryMechanical engineeringAir conditioning, refrigeration and ventilation industryPaper and printing machinery industrySpecial purpose machinery manufacturingShipbuilding industryMachine tool manufacturingPackaging industryMeasurement and control technique, laboratory equipmentDrive and gear engineeringAutomotive and vehicle constructionBuilding, agricultural and forestry machinery manufacturingRailway and rail vehicles industryPrecision engineering, mechatronics and opticsMilitary engineeringApparatus engineeringPlant engineering and constructionMedical technology

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