China Custom Industrial Gears Manufacturer — Precision Spur, Helical, Bevel & Worm Gears to Drawing
PRT Metal manufactures precision industrial gears to DIN and AGMA standards across all major gear types — delivering fully inspected, heat-treated components with complete material certification for MRO replacement, OEM supply, and non-standard custom gear requirements worldwide.
Complete Industrial Gear Solutions Built to Your Specifications
Spur & Helical Gear Wheels
Pinion Shafts
SPIRAL BEVEL GEAR
Worm Gear Sets
Internal Gears & Annulus Gears
Linear Gear Racks
Non-Standard and Custom Gear Manufacturing from Drawing or Sample
Off-the-shelf gears rarely match the exact module, bore, and tooth profile required for legacy equipment or OEM assemblies. PRT Metal manufactures fully custom gears from your CAD drawing, sample part, or dimensional sketch — with no minimum standard geometry requirement.
DIN and AGMA Accuracy Grades with Full Inspection Documentation
Every gear manufactured at PRT Metal is inspected against DIN 3961 or AGMA 2000 accuracy standards using dedicated gear measuring equipment — with tooth profile, pitch error, runout, and surface finish data recorded and supplied with every shipment.
MRO Emergency Replacement Orders Prioritized and Expedited
A failed gear in a production line or processing plant cannot wait weeks for a standard lead time. PRT Metal operates an expedited manufacturing track for urgent MRO gear replacements — enabling faster scheduling, priority inspection, and direct express shipping to your facility.
WHY CHOOSE US
PRT Metal manufactures spur gears, helical gears, bevel gears, worm gear sets, pinion shafts, internal gears, annulus gears, and gear racks for steel plants, rolling mills, mining equipment, cement machinery, lifting systems, conveyors, and industrial gearboxes. Our production process covers CNC hobbing, shaping, grinding, broaching, controlled heat treatment, precision machining, and final inspection to ensure accurate tooth profiles, stable meshing, and reliable torque transmission.
Before production, our engineering team reviews each inquiry based on torque load, operating speed, mating gear interface, installation dimensions, material requirements, and working conditions. We then provide feasibility feedback, material suggestions, and lead time confirmation, giving your team the technical confidence to source custom gears from PRT Metal.
Listen to what they say about our products
We submitted a drawing for a non-standard helical gear with a modified pressure angle and a specific surface hardness requirement. PRT Metal confirmed the specification within 48 hours, produced the gear to exact dimensional tolerance, and supplied a full inspection report with the shipment. First-article inspection passed without any deviation.”
“Our cement mill gearbox failed due to a broken bevel pinion gear. We sent the damaged part to PRT Metal as a sample reference. They reverse-engineered the geometry, manufactured a replacement in 4Cr alloy steel with induction hardening, and shipped within 16 working days. The replacement has been running without issue for over 14 months.”
“PRT Metal supplies helical gear sets for our industrial gearbox production line on a quarterly call-off basis. Dimensional consistency across batches is excellent, material certificates match our incoming inspection requirements, and pricing has remained stable across multiple order cycles. A reliable and professional gear manufacturing partner.”
Frequently asked questions
PRT Metal manufactures spur gears, helical gears, bevel gears (straight and spiral), worm gears and worm wheels, internal ring gears, and gear racks. Both external and internal tooth profiles are available. All gear types can be produced to standard DIN or AGMA profiles, or to fully custom non-standard geometries based on your drawing or sample.
Our current manufacturing capability covers gear outer diameters up to 2,500mm for hobbed and shaped gears, and modules from M1 to M50. For large-diameter ring gears and slewing gear segments beyond standard ranges, please submit your drawing for a dedicated capacity review and feasibility confirmation from our engineering team.
Standard material options include 45# carbon steel, 40Cr alloy steel, 42CrMo chromium-molybdenum steel, 20CrMnTi case-hardening steel, and nodular cast iron (QT600/QT700) for large gear blanks. Bronze (CuSn12) is available for worm wheels. Stainless steel grades 304 and 316 are available for corrosion-sensitive applications. Material selection guidance is provided based on your load and environmental requirements.
Available heat treatment processes include induction hardening (surface hardness HRC 45–62), carburizing and case hardening (case depth 0.5–2.5mm), nitriding (HV 550–1100), and through-hardening (HRC 28–35). Hardness is verified by Rockwell or Vickers hardness testing on production samples, with test results documented in the heat treatment record supplied with each order.
Standard lead time for custom-manufactured gears is 15–30 working days depending on gear type, diameter, quantity, and heat treatment requirements. Prototype and emergency MRO replacement orders are scheduled on an expedited basis — contact our team with your drawing and required delivery date for a confirmed production timeline before order placement.
For an accurate quotation, it is best to provide:
- drawing or sample
- module
- number of teeth
- outer diameter or pitch dimensions
- material
- hardness requirement
- accuracy grade
- application or working condition
- required quantity
If some data is missing, we can help review the available information first.
How You Work with Us?
Partnering with PRT Metal is straightforward and efficient. Follow these simple steps to get started with your need:
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Ready to Simplify Your Sourcing?
Send your drawings and get a complete quotation for industrial gears from one reliable manufacturer.
Contact our expert team
- Phone
- +86 17751766219
- sharon@czprt.com
- Address
- No. 18, Xingao Road, Niutang Town, Wujin District, Changzhou, Jiangsu Province, China
