Can you hold tight tolerance on 303?

Yes, +/-0.003mm on critical dimensions with CMM verification.

What thread types can you machine?

NPT, NPTF, BSPP, BSPT, UN, UNF, UNC, Metric, and custom threads.

Can you machine micro-holes in injector nozzles?

Yes, micro-hole drilling from 0.3mm diameter and above (subject to depth-to-diameter ratio).

Send drawings (PDF/STEP/IGS/DWG) with: material (303), tolerance, thread type (if any), surface finish requirement, and quantity. No drawing? Send a sample, photo, or sketch - free engineering support.

What is your lead time?

Sample 10-15 days. Batch 2-3 weeks. Rush service available.

Do you offer samples?

Yes. Sample fee refundable upon mass production order. Sample includes full inspection report and material certificate.

What after-sales support do you offer?

30 days to report issue, solution in 7 days. Click 'Contact Supplier'.

Precision Turned Components for Injectors with 303 Stainless

Name: Precision Turned Components for Injectors with 303 Stainless
Brand: Dongguan Guanneng Automation Technology Development Co., Ltd.
SKU: 2300640815

Guangdong, ChinaDongguan Guanneng Automation Technology Development Co., Ltd.

US$5.00

100-999 Pieces

US$3.00

1,000-9,999 Pieces

US$1.00

10,000+ Pieces

Product profile

Customization

Available

Application

Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Standard

GB, EN, China GB Code, JIS Code, TEMA, ASME

Surface Treatment

Powder Coated

Production Type

Mass Production

Machining Method

CNC Machining

Material

Steel

Keywords 01

303 Stainless Steel Injector Components

Keywords 02

Precision Turned Injector Nozzles

Keywords 03

Free-Machining Stainless Injector Parts

Keywords 04

Fuel Injector CNC Machining

Keywords 05

Micro-Hole Drilling Injector Tips

Keywords 06

High Volume Turned Stainless Parts

Keywords 07

Gas Injector Valve Bodies

Keywords 08

Common Rail Injector Components

Keywords 09

Precision Turned 303 Fittings

Keywords 10

Injector Metering Components

Transport Package

Individual Packing + Wooden Case

Specification

OD68*L900mm

Trademark

GGN

Origin

China

HS Code

8466939000

Production Capacity

1000PCS

Key features

High-Volume Machinability: 303 stainless steel offers 78% machinability of B1212 for complex, high-speed production.

Ultra-Tight Tolerances: Critical features held to +/-0.003mm with full CMM verification and inspection reports.

Micro-Hole Drilling: Capable of drilling micro-holes from 0.3mm diameter with controlled entry and exit burrs.

ISO9001 Certified Quality: ISO9001:2015 certified manufacturer with 100% inspection and EN 10204 3.1 material certificates.

Low Minimum Order Quantity: Accepts orders starting from 1 piece, suitable for prototypes and small batch production.

Fast Lead Time: Samples delivered in 10-15 days; batch orders completed within 2-3 weeks.

Comprehensive Surface Finish: Achieves Ra <= 0.4um for sealing surfaces with options for passivation and electropolishing.

Diverse Thread Capabilities: Machining NPT, BSPP, Metric, and custom fine threads with Class 2 or 3 accuracy.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast Delivery

Dongguan Guanneng Automation Technology Development Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤0.64h

About Our Factory & Business Background

AddressRoom 202, Building 2, No. 6, Wanjiang Chuangye Industrial Road, Wanjiang Street, Dongguan City, Guangdong Province

Plant Area900 square meters

Number of Employees17

Registered Capital5,000,000 RMB

Terms of PaymentT/T, PayPal

International Commercial Terms(Incoterms)FOB, CIF, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays, one month Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 PCS

Supply Chain Partners20

Our Production Capability & Technical Expertise

Main ProductsCNC Machining Parts, Precision Machining Parts, Precision CNC Machining Parts, CNC Turning Part, Machinery Part, Machined Part

Production Lines2

Production MachinesCNC Machining Facility, Drilling Facility, Lathe, Milling Facility, Laser Marking Facility

QA/QC inspectors2 people

Inspection Type for Finished Products100% inspection(Visual inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers2 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2018-08-08

Main MarketsNorth America, Europe, East Asia(Japan/ South Korea)

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff2

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015

Cooperated with Fortune 500No

Product Q&A

Q:Are you a manufacturer or trading company?

We are a direct manufacturer - 2,000 sqm, 17 years of experience, 30+ CNC machines, ISO9001, 3D CMM. Send inquiry for a live video tour of our shop floor.

Q:What is 303 stainless steel?

303 (UNS S30300) is a free-machining austenitic stainless steel with sulfur added to enhance machinability. It is the most readily machinable of all austenitic stainless steels.

Q:Why is 303 preferred for injector components?

303 offers excellent machinability for complex injector geometries, good corrosion resistance, non-galling properties, and non-magnetic characteristics - ideal for injector applications.

Q:What is the machinability rating of 303?

Approximately 78% of free-cutting carbon steel (B1212), allowing for higher cutting speeds and longer tool life than 304 or 316.

Q:Is 303 suitable for welding?

303 has poor weldability due to sulfur content. For applications requiring welding, consider 304 or 304L.