What are the usage restrictions?

Do not use on doors over 50kg, do not extend chain beyond 110 degrees, not suitable for external doors, rising, falling, projection or parliament hinges.

What is included in the packing?

2 piece for a box;10 boxes for a carton. Includes 1 piece Spanner and 40 Piece Ss Screws.

Toilet Door Concealed Door Closer

Name: Toilet Door Concealed Door Closer
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 865500355

Guangdong, ChinaDongguan Shengang Precision Metal & Electronic Co., Ltd.

US$1.00-20.00

500 Pieces

Sample price:US$18.00/piece.Request sample

Product profile

Customization

Available

Type

110 Degree

Finish

Stainless Steel

Model NO.

SG-DC001

Material

Brass

Name

Toilet Door Concealed Door Closer

Angle

110 Degree

Door Weight

50kg

Fittings/Box

1 Piece Spanner and 40 Piece Ss Screws

Transport Package

White Inner Boxes, Yellow-Brown Outer Cartons for

Specification

160*28**28*32mm

Trademark

Origin

China

Production Capacity

10000piece/Pieces

Key features

5-Year Warranty Coverage: Free replacement for any defective unit due to manufacturing faults or material defects.

110 Degree Opening Angle: Designed specifically for doors up to 110 degrees; exceeding this invalidates the guarantee.

High Durability Rating: Tested for 500,000 cycles with a one-hour plus half-hour warning frequency.

Stainless Steel Finish: Constructed from brass with a durable stainless steel finish for long-lasting performance.

Supports Heavy Doors: Suitable for doors up to 940mm width and weighing up to 50kg.

OEM and ODM Services: Customization services available with 5 R&D engineers and CNC facilities.

Complete Installation Kit: Includes 1 piece spanner and 40 pieces of stainless steel screws per box.

Fast Delivery Options: 10-30 days delivery time depending on stock availability and order quantity.

Company profile

Dongguan Shengang Precision Metal & Electronic 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: 19 Years CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤2.73h

AI-Powered supplier vetting

SummaryDongguan Shengang Precision Metal & Electronic Co., Ltd. is a China-based limited trading/manufacturing company established in 2007, with a stated founding description also referring to February 2000. It operates from Dongguan, Guangdong, with 117 employees, a 5,550 m² manufacturing plant, six production lines, and 5 R&D engineers. Its product range centers on door and window hardware, including hinges, locks, handles, closers, stoppers, and sliding or folding-door fittings. The supplier reports ISO 9001:2015 certification, OEM/ODM cooperation, international export coverage, and sales in Europe, America, Southeast Asia, and the Middle East. Production-management and technical capabilities are supported by stated equipment, engineers, quality-control personnel, and testing activities. However, the provided information does not substantiate after-sales procedures, financial strength, specific customer cases, or measurable customization performance.

Supplier typeThe supplier is identified as a China-based limited company and trade company, while its descriptions also characterize it as an international manufacturer integrating R&D, production, and sales of door and window hardware. This indicates a combined trading and manufacturing profile rather than a purely trading entity.

CertificationsThe supplier explicitly reports holding an ISO 9001:2015 certificate for its management system. This is direct evidence of a recognized quality-management certification, although the scope and validity details are not provided.

R&D capabilityThe supplier reports advanced production equipment, leading production technologies, 5 R&D engineers, mold-making and product-testing activities, and multiple product types including adjustable concealed and casement hinges. These statements directly support active technical development and product innovation capability.

Production capacityThe supplier reports a 5,550 m² manufacturing plant, six production lines, advanced equipment, production technologies, dozens of production staff, quality-control personnel, and a production-management system. Its stated product scope and broad export markets further indicate established operating capacity.

Customization capabilityThe supplier states that its engineers conduct R&D, mold making, production and processing, and product testing, and that it cooperates with international brands through OEM and ODM. These activities explicitly support customization capability, although no customization examples, minimum quantities, or technical limits are specified.