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High Precision Coupler Compression Djm Couplings Double Diaphragm Couplings for Manufacturer
US$25.00
200 Pieces
Sample price:US$35.00/piece.Request sample
Product profile
Customization
AvailableStandard Or Nonstandard
Standard or OEMShaft Hole
as Per RequirementModel NO.
CouplingTorque
as Per RequirementBore Diameter
as Per RequirementSpeed
as Per RequirementStructure
Flexible & RigidMaterial
Stainless Steel,Iron,Aluminium...Type
as Per The UsageMaterial: Aluminum
AluminumStandard or Nonstandard
: StandardWarranty
3 YearCustomized Support
OEM, ODM, ObmType
FlexibleApplicable Industries
Industrial EquipmentAdjustment Ring Material
Stainless SteelInstallation Hole Type
Round Hole TypeFlexible or Rigid
FlexibleProduct Name
Flexible Couplings CouplerApplication
Industrial EquipmentModel
CltMOQ
1High Precision
YesDiaphragm Material
SUS Stainless SteelTransport Package
Wooden BoxSpecification
100*100*100cmTrademark
D&F or OEMOrigin
ChinaProduction Capacity
1000000PCS/YearKey features
OEM/ODM Customization: Supports OEM, ODM, and OBM customization for materials, standards, and designs.
High Precision Manufacturing: CNC turning, grinding, and dynamic balancing ensure stable power transmission.
Excellent Misalignment Compensation: Effectively handles axial, radial, and angular offsets for smooth operation.
Durable Material Options: Available in 45# steel, 40Cr, aluminum alloy, and stainless steel.
Wide Application Scope: Suitable for pumps, valves, gearboxes, and industrial machinery drives.
Low MOQ for Trials: Minimum order quantity starts at just 1 piece for standard items.
1-Year Warranty Coverage: Provides 12 months of guarantee from the date of shipment.
Flexible & Rigid Types: Offers both flexible and rigid coupling structures to match specific needs.
Company profile

Diligence & Fine Machinery (Qingdao) Co., Ltd.Shandong, China
Business Type: Manufacturer/FactoryNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤0.32hTerms 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.
Product Q&A
Q:Are you a factory?
A:
Yes, we are a factory with world-leading manufacturing facilities to meet different product levels.
Q:What is your MOQ?
A:
The MOQ is 1 for small standard products. For customized products, it depends on the specific item.
Q:How long is the warranty?
A:
We provide a 12-month guarantee from the date of shipment.
Q:Can you provide OEM services?
A:
Yes, we have rich experience in OEM for world-famous brands and can customize products according to customer drawings.
Q:What is the delivery time?
A:
Small standard products are in stock. Big-sized products take 15-20 days. Customized products depend on the specific requirements.
Send Inquiry
*To:
Diligence & Fine Machinery (Qingdao) Co., Ltd.
Diligence & Fine Machinery (Qingdao) Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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