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Robust Belt Pulley for Rotary Screw Compressors

Name: Robust Belt Pulley for Rotary Screw Compressors
Brand: Diligence & Fine Machinery (Qingdao) Co., Ltd.
SKU: 2152690542

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

US$3.90

50-199 Pieces

US$2.60

200-499 Pieces

US$1.80

500+ Pieces

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Certification

CE, ISO, Industrial Standard

Pulley Sizes

Type a,Type B, Type C.....

Manufacturing Process

Casting or Forging

Material

Carbon Steel, Alloy, Iron,Stainless Steel

Surface Treatment

Baking Paint, Oxygenation,Electroplating...

Application

Chemical Industry, Grain Transport, Mining Transport, Power Plant

Trade Teram

Fob,C&F, CIF

Payment Term

T/T or Other Acceptable Terms

Packing

Suitable for Ocean and Air Shipment

ODM

Acceptable

OEM

Acceptable

Sample

Available

MOQ

as Per The Order Size

Delivery Time

as Per The Order Qty

Factory Tour

Acceptable

After Sales Service

Available

Material.

Alloy

Outside Diameter

50mm

Pitch Diameter

50mm

Width

10mm

Transport Package

Wooden Box

Specification

100*100*100cm

Trademark

D&F or OEM

Origin

China

Production Capacity

1000000PCS/Year

Key features

Customizable Outer Diameter: Outer diameter ranges from 50mm to 2000mm with full customization options.

Wide Material Selection: Available in Cast Iron, Carbon Steel, Aluminum Alloy, Ductile Iron, and Stainless Steel.

High Precision Balancing: Offers G6.3 or G2.5 dynamic balancing grades for stable operation.

Multiple Groove Standards: Supports A, B, C, SPA, SPB, SPC, 3L, 4L, 5L and other international types.

OEM and ODM Acceptance: Experienced in OEM services for world-famous brands with custom design capabilities.

Diverse Surface Treatments: Options include blackening, sandblasting, phosphating, anodizing, and coating.

12-Month Warranty: Comprehensive guarantee coverage for 12 months from the date of shipment.

Low Noise and Vibration: High machining accuracy ensures reduced noise and vibration in operation.

Company profile

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

Business Type: Manufacturer/FactoryNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤0.34hTerms 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.