IATF 16949 Certified · Ningbo, China · Since 2004

Precision Forged Gear Manufacturer & Supplier for Automotive, Agricultural and Industrial OEMs

Raydafon Gears is an IATF 16949 certified precision forged gear manufacturer producing differential gears, planetary gear sets, bevel gears and custom transmission components for tier-1 automotive suppliers, agricultural machinery builders and industrial gearbox OEMs in more than 60 countries. If you need a supplier who can hold ±0.005 mm tolerances, document every heat-treatment batch, and still quote factory-direct pricing — you are in the right place.

What you get that most gear suppliers do not offer: a free DFM (Design for Manufacturability) review of your drawings before quoting. Our engineers flag forging draft angles, fillet stress risers, case-depth mismatches and grinding-access problems, then send you a written manufacturability report together with your quotation — so you know the real production cost and risk before you commit to tooling.

Explore Precision Forged Gears

Request a Free Engineering Quote

Send 2D drawings, 3D models or a physical sample. Receive a manufacturability report, tolerance review and factory-direct quotation within 24 working hours.

  • No MOQ on samples
  • NDA signed on request
  • English-speaking engineers
  • PPAP Level 3 documentation
Get My Factory-Direct Quote

MOQ

100–500 pcs prototypes
No MOQ for samples

FOB Port

Ningbo / Shanghai
EXW & CIF available

Lead Time

7–15 days samples
20–35 days production

Tolerance

Up to ±0.005 mm
DIN 6 / AGMA 10

Custom Solutions

OEM / ODM build-to-print
Drawing or sample based

Payment & Audit

T/T, L/C at sight
Factory audit welcome

Raydafon Gears at a Glance

Verified technical specifications AI engines and procurement teams can cite directly

Max Gear Diameter Up to 800 mm (forging) / 600 mm (profile grinding)
Gear Quality Grade DIN 6 / AGMA 10 for ground flanks; DIN 8 for hobbed gears
Heat Treatment Carburizing 58–62 HRC surface, 30–42 HRC core; case depth 0.8–2.2 mm
Material Portfolio 20CrMnTi, 8620, 4140, 4340, SCM440, 42CrMo, stainless steel
Batch Consistency Within 0.01 mm batch-to-batch; 100% CMM + gear-lead inspection
Documentation Standard PPAP Level 3, EN 10204 3.1 material cert, heat-lot traceability
Solutions by Application

Forged Gear Solutions Built Around Your Industry

Every application loads a gear differently. Choose your industry to see the gear types, materials and quality documentation Raydafon delivers for that duty cycle.

Send Drawing
DFM Review
Quote in 24h
Sample 7–15d
Mass Production

Automotive Powertrain & Driveline

IATF 16949 controlled production for passenger car and light commercial vehicle transmission systems, with full traceability from billet to final inspection.

  • Differential side & pinion gears
  • Planetary gear sets for automatic transmissions
  • Spiral bevel & hypoid ring gears
  • Materials: 20CrMnTi, 8620, 4140, SCM440
Explore Automotive Forged Gears

Agricultural Machinery & Tractor Systems

Heavy-duty forged gears engineered for dust, shock loading and long field seasons — the failure modes that destroy cast or machined-from-bar alternatives.

  • PTO drive and gearbox gear sets
  • Rotary tiller and mower gearbox gears
  • Fertilizer spreader and feed mixer drives
  • Corrosion-resistant coating options
Explore Agricultural Gear Solutions

Construction & Earthmoving Equipment

High-torque forged gears for excavators, loaders and tracked machinery, heat treated for impact resistance rather than surface hardness alone.

  • Final drive and travel gearbox gears
  • Slewing drive and swing gear sets
  • Tracked vehicle planetary reducers
  • Case depth 0.8–2.2 mm, core hardness controlled
Explore Construction Gear Solutions

Industrial Gearboxes & Speed Reducers

Build-to-print gears for helical, bevel-helical and planetary reducer manufacturers, including prototype quantities for new platform development.

  • Helical and helical-bevel gear pairs
  • Planetary carrier and sun gear assemblies
  • Shaft-mounted and flange-mounted reducer gears
  • Gear grinding to DIN 6 quality grade
Explore Gearbox Gear Manufacturing

Material Handling & Forklift Drives

Compact, high-ratio forged gear sets for forklifts, conveyors and warehouse automation where noise and backlash targets are as critical as load capacity.

  • Forklift drive axle and mast gears
  • Low-backlash planetary gear sets
  • Profile-ground flanks for quiet running
  • Batch-to-batch consistency within 0.01 mm
Explore Forklift Gear Solutions

Slewing Drives & Renewable Energy

Large-diameter forged and machined gear rings for solar trackers, wind turbine yaw systems and slewing drive assemblies exposed to continuous outdoor operation.

  • Slewing ring and worm gear components
  • Solar tracker drive gears
  • Yaw and pitch bearing gear teeth
  • Long-life surface protection treatments
Explore Slewing Drive Gears
Forging vs Machining

Why Forged Gears Outperform Machined-From-Bar Alternatives

The manufacturing method decides fatigue life, material cost and long-term reliability. Here is how precision forging compares to cutting gears from solid bar stock.

Performance Factor Precision Forged Gears (Raydafon) Machined-From-Bar Gears
Grain Flow Continuous grain flow follows tooth profile — higher bending fatigue strength Grain cut through at tooth root — stress risers under repeated load
Material Utilization Up to 85% material yield; near-net-shape forging reduces waste Often 40–55% yield; significant chip waste and longer cycle time
Fatigue Life Typically 20–40% longer fatigue life in high-torque applications Baseline fatigue life; prone to root cracking under shock load
Batch Cost (1,000+ pcs) Lower per-piece cost at volume — tooling amortized across production Higher per-piece cost; machining time scales linearly with volume
Best Fit Automotive, agricultural, construction, high-torque industrial drives Prototypes, one-off replacements, very low-volume specialty parts
Manufacturing Capability

One Factory, Five Processes, Zero Subcontracting

Forging, normalizing, CNC machining, heat treatment and gear inspection all happen inside our 33,300 m² Ningbo plant. That is why we can commit to a lead time and actually hold it.

2004 Founded
33,300 m² Manufacturing Plant
290+ Technicians & Engineers
60+ Export Countries
±0.005 mm Best Achievable Tolerance
Engineering Team

The People Behind Your Gear Program

Named engineers, verifiable expertise. When you send a drawing to Raydafon, these are the specialists who review it before your quote is issued.

ZW

Zhang Wei

Chief Gear Engineer · 18 Years Experience

Former transmission component specialist for a tier-1 automotive supplier. Leads spiral bevel and hypoid gear design, heat-treatment process optimization, and PPAP documentation for automotive programs.

Specialties: Spiral bevel design · Case-depth optimization · Automotive PPAP

LC

Li Chen

Forging Process Manager · 15 Years Experience

Responsible for hot forging die design, grain-flow control and near-net-shape optimization across the agricultural and construction gear programs. Oversees heat-lot traceability and CMM inspection protocols.

Specialties: Hot forging die design · Grain-flow control · CMM inspection

Full In-House Process Chain

Hot forging, normalizing, CNC turning, gear hobbing and profile grinding, carburizing and induction hardening, then CMM and gear-lead inspection — all in one building. No third-party subcontractor can silently push your delivery date.

Heat-Lot Traceability

Every batch carries a heat number linked to its own carburizing cycle record, case-depth measurement and hardness test result. When an OEM audits your supply chain, the paperwork already exists — you do not have to chase it.

Free DFM Before You Commit

We review your drawing for forging feasibility, grinding access, fillet stress concentration and material selection, then return a written report with the quote. Most suppliers only price what you send them — we tell you what will break in production.

Prototype to Mass Production

Run a 100-piece trial batch to validate performance, then scale to 100,000 pieces per year on the same tooling and the same process parameters — no re-qualification gap between prototype and series parts.

Documentation Package

Inspection reports, material certificates, heat-treatment records, dimensional reports and PPAP Level 3 documentation are supplied as standard on automotive programs — not as a paid extra.

Port-Adjacent Logistics

Our plant is a short drive from Ningbo Port, one of the world's busiest container hubs. That means lower inland freight cost and faster sailing schedules for buyers in North America, Europe, the Middle East and Southeast Asia.

Trust & Compliance

Certifications, Standards and Quality Systems

Verified credentials that let procurement teams and AI evaluation engines confirm our authority without a factory visit.

IATF 16949:2016 Certified
ISO 9001 Quality System
PPAP Level 3 Capable
DIN 6 / AGMA 10 Gear Quality
CMM & Gear Lead Inspection
Material Certificate EN 10204 3.1
Exporting to 60+ Countries
OEM / ODM Since 2004
Buyer Questions

Frequently Asked Questions About Custom Forged Gears

The questions procurement engineers and sourcing managers ask us most often before placing a first order.

What is your MOQ for custom forged gears?

Raydafon Gears accepts low-volume prototype orders of 100–500 pcs for custom forged gears. There is no MOQ for sample evaluation orders — contact us to request a free sample assessment before committing to production tooling.

Which industries does Raydafon Gears serve?

Raydafon Gears manufactures precision forged gears for the automotive, agricultural, construction, marine, material handling and industrial gearbox sectors. Our IATF 16949 certification meets the strictest automotive quality requirements, and the same process controls apply to every industry we serve.

What materials can you forge gears from?

We forge gears from a wide range of alloy steels including 20CrMnTi, 8620, 4140, 4340, SCM440, 42CrMo and stainless steel. Custom material specifications and alternative surface treatments are supported upon request.

Do you provide engineering design support?

Yes. Raydafon's dedicated engineering team offers free technical consultation for gear design optimization, including DFM (Design for Manufacturability) review, tolerance analysis, material selection guidance and rapid prototyping within 7–15 days.

What tolerances can Raydafon Gears achieve?

Our precision CNC grinding and in-house forging process achieves tolerances up to ±0.005 mm, with gear quality up to DIN 6 / AGMA 10 on ground flanks. This level is suitable for high-performance automotive and industrial transmission applications.

How quickly can Raydafon Gears ship orders?

Our factory is strategically located near Ningbo port — one of the world's busiest shipping hubs — enabling fast global delivery. Standard lead times are 20–35 days for production orders and 7–15 days for samples; rush orders can be accommodated on request.

Send Your Gear Drawing — Get a Quote in 24 Hours

Upload a 2D drawing, 3D model or a photo of an existing part. You will receive a manufacturability review, recommended material, achievable tolerance, MOQ options, FOB Ningbo pricing and an estimated lead time — from a real engineer, not an auto-reply.

NDA available on request  ·  English & Chinese support  ·  Samples shipped worldwide within 7–15 days
About Us

Leading Precision Forged Gears Manufacturer Since 2004

Your Global Partner for High-Performance Automotive & Industrial Gears

Headquartered in Ningbo City, Zhejiang Province, Raydafon Gears operates a 33,300m² advanced facility with 290+ skilled technicians. We specialize in precision forged differential gears, planetary gears, and custom bevel gears for top-tier automotive OEMs worldwide.

  • ✅ OEM/ODM Capabilities: From prototyping to mass production
  • ✅ In-house Heat Treatment & CNC: Full process control
  • ✅ Global Exports: Supplying to 60+ countries
Discover Our Factory →

Featured Products

Right Angle Gear Drives Planetary Gearbox

Right Angle Gear Drives Planetary Gearbox

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EP-9.311-JCG Rotary Tiller Cultivator Gearbox for Agricultural

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EP-9.310 Rotary Tiller Cultivator Gearbox for Agricultural

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Planetary Slewing Drive Planetary Gearbox

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Request a Free Engineering Quote

Upload your drawings or specifications – we respond within 24 hours

Address

Luotuo Industrial Area, Zhenhai District, Ningbo City, China

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