Customized Professional Diaphragm Coupling: Stainless Steel Shaft Diaphragm Flexible Disc Couplings for Cranes

Name: Customized Professional Diaphragm Coupling: Stainless Steel Shaft Diaphragm Flexible Disc Couplings for Cranes
Brand: Diligence & Fine Machinery (Qingdao) Co., Ltd.
SKU: 2141967592

Shandong, ChinaDiligence & Fine Machinery (Qingdao) Co., Ltd.

US$25.00

200 Pieces

Sample price:US$35.00/piece.Request sample

Product profile

Customization

Available

Standard Or Nonstandard

Standard or OEM

Shaft Hole

as Per Requirement

Model NO.

coupling

Torque

as Per Requirement

Bore Diameter

as Per Requirement

Speed

as Per Requirement

Structure

Flexible & Rigid

Material

Stainless Steel,Iron,Aluminium...

Type

as Per The Usage

Standard or .Nonstandard

Standard

Warranty

3 Years

Customized Support

OEM, ODM, Obm

Applicable Industries

Industrial Equipment

Adjustment Ring Material

Stainless Steel

Flexible or Rigid

Flexible

Bore Size

Aluminum Alloy

Bore Diameter/

20 mm(0.79in)

Maximum Speed

1000rpm

Rated Torque

100 N·M

Product Name

Flexible Couplings Coupler

Material.

Nylon/Steel/C45

Structure.

Jaw / Spider

Body Material

Cast Iron

Color

Red,Yellow, Blue etc.

Transport Package

Wooden Box

Specification

100*100*100cm

Trademark

D&F or OEM

Origin

China

Production Capacity

1000000PCS/Year

Company profile

Diligence & Fine Machinery (Qingdao) Co., Ltd.Shandong, China

Business Type: Manufacturer/FactoryNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤0.70hTerms of Payment: Small-amount payment, Western Union, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CIP

AI-Powered supplier vetting

SummaryDiligence & Fine Machinery (Qingdao) Co., Ltd. is identified as a China-based limited trading company established in 2025, focused on transmission components and broader industrial machinery. The supplier reports more than 10 production lines, 6–10 quality-control staff, annual capacity of up to 5 million pieces, and export sales representing 71%–90% of total sales. Its stated product range includes gears, pulleys, belts, couplings, shafts, flanges, locking devices, and non-standard parts. The supplier claims design capability through experienced engineers, advanced equipment, and the ability to provide non-standard products, but the evidence does not establish certifications, documented customer cases, or proven after-sales performance. The records also contain capacity inconsistencies and state zero total staff experience, limiting confidence in the scale and maturity assessment.

Supplier typeThe supplier is explicitly classified as a Trading Company and a limited company based in Qingdao, China. Its business description further states that it integrates manufacturing and sales of transmission components, with products mainly for export.

R&D capabilityThe supplier claims that transmission parts are developed and designed by capable and experienced engineers and that advanced equipment has been invested in. It also lists high-precision products and various non-standard parts, providing some evidence of design and engineering capability, but no patents, R&D data, or verified innovation results are stated.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, annual capacity of up to 5 million pieces, and stated outputs for shafts, couplings, belts, pulleys, and gears; export sales are reported at 71%–90%. However, the 112.2 m² plant area, zero reported total staff experience, and inconsistencies in the capacity entries reduce confidence in the completeness and reliability of the production profile.

Customization capabilityThe product description explicitly includes various non-standard parts and castings, while the supplier states that its engineers develop and design a full range of transmission parts. This directly supports the ability to handle at least some customized or non-standard component requirements.