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Product profile
Customization
AvailableMaterial
Carbon SteelType
Round HeadModel NO.
3/4-5x285Groove
TrapezoidalConnection
Common BoltHead Style
RoundStandard
DIN, GB, ISOGrade
7eSurface Treatment
PolishColor
NaturalDirection
Right / Left HandTechnology
Cold ExtrusionTransport Package
Bubble Bag+Carton+Wooden Case or up to YouSpecification
ISO9001Trademark
NblangchiOrigin
Ningbo, Zhejiang, ChinaHS Code
8483401090Production Capacity
300, 000PCS/MonthKey features
Customizable Surface Treatment: Options include polishing, blacking, anodizing, chrome plating, zinc plating, nickel plating, and tinting.
Customizable Thread Direction: Available in both right-hand and left-hand configurations to suit specific mechanical needs.
Wide Material Selection: Materials include carbon steel, alloy steel, stainless steel, copper, aluminum, brass, and POM.
Precision CNC Machining: Manufactured using over 250 sets of advanced CNC equipment for high accuracy and quality.
Custom Dimensions: Products can be manufactured according to specific customer drawings and special specifications.
Comprehensive Quality Control: 100% inspection during production and random sampling before shipment to ensure reliability.
OEM and ODM Services: Full OEM and ODM capabilities available with 3 dedicated R&D engineers for custom solutions.
Fast Sample Delivery: Samples are delivered within 7-15 days, while batch production takes approximately 30 days.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-02-29 CertifiedNearest Port: Ningbo PortAverage Response Time: ≤18h CertifiedTerms of Payment: T/T
AI-Powered supplier vetting
SummaryNingbo Langchi Transmission Technology Co., Ltd. is a China-based limited company in Ningbo, Zhejiang, established in 2016, with 52 employees and a 3,650 m² manufacturing plant. The supplier describes itself as a manufacturer of lead screws, nuts, worms, and worm gears, while another record classifies its company nature as a trading company. It holds an ISO 9001:2015 certificate, operates more than 10 production lines, and has 6–10 quality-control staff. Products support multiple international thread standards and materials, with stated customization for special specifications, screws, nuts, and M0.5–M6 worm and worm-wheel modules. Export markets span Africa, East Asia, Europe, Australia, and North America. Off-peak lead time is within 15 working days and peak-season fulfillment is one month. Evidence is insufficient to assess after-sales service, financial credibility, or customer cases.
Supplier typeThe supplier is legally identified as a combined, limited company established in China, while its company nature is separately recorded as a trading company. Its own description presents it as a professional manufacturer of screws, nuts, worms, and worm wheels, indicating a mixed manufacturing and trading profile.
CertificationsThe supplier explicitly reports holding an ISO 9001:2015 management-system certificate. This provides documented evidence of a quality-management certification, although no additional certifications are stated.
R&D capabilityThe supplier supports international, DIN103, and ACME thread standards, multiple material options, one-start and multi-start screws, and left- and right-hand screw configurations. However, the stated R&D engineer experience is three years, and there is no evidence of patents, proprietary technology, or formal product-development results.
Production capacityThe supplier reports 52 employees, a 3,650 m² plant, more than 10 production lines, 6–10 quality-control staff, and ISO 9001:2015 certification. It also states an off-peak lead time within 15 working days and peak-season fulfillment within one month, supporting a demonstrated production and delivery capacity.
Customization capabilityThe supplier explicitly states that special specifications can be customized according to customer requests, including screws, nuts, and M0.5–M6 worm and worm-wheel modules. Its product description also covers varied thread configurations and materials, providing direct evidence of customization breadth.
Product Q&A
Q:Can the product specifications be customized?
A:
Yes, special specifications including dimensions, surface treatment, and thread direction can be customized according to customer requests.
Q:What materials are available for the lead screw?
A:
We offer carbon steel, alloy steel, stainless steel, copper, aluminum, brass, tin-bronze, POM, and cast iron.
Q:What is the lead time for samples and bulk orders?
A:
Sample delivery takes 7-15 days, and batch production requires approximately 30 days.
Q:Do you offer OEM and ODM services?
A:
Yes, we provide both OEM and ODM services with 3 R&D engineers to support custom manufacturing.
Q:What quality control measures do you have in place?
A:
We perform 100% inspection during production and conduct random sampling before shipment.
Send Inquiry
*To:
Ningbo Langchi Transmission Technology Co., Ltd.
Ningbo Langchi Transmission Technology Co., Ltd.*Content:
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