Import Airflex 28vc1000 142674hc Equivalent Dalin — Buy in Bulk from Supplier in China

Henan Dalin Rubber And Telecommunications Apparatus Co., Ltd produces the 28vc1000 as a ventilated constriction clutch equivalent to the Eaton Airflex 142674hc series, sized for 28-inch drum diameters. Like its stablemates, this unit handles brake and clutch duties in applications with substantial inertia loads and extended slipping periods that would degrade conventional designs. Torque delivery occurs through internal torque bars rather than actuating tube sidewalls, with the tube floating loosely within a rim-and-side-plate housing where both side plates are field-replaceable. The 28vc1000 occupies the larger end of the mid-range VC lineup, positioned between the 24vc1000 and 32vc1000 in Dalin's catalogued size matrix.

The aluminium brake shoes incorporate machined cavities that receive the torque bars, with side plates retaining the bars in position as they cross through these cavities. Pneumatic pressurisation of the rubber actuating tube expands the shoes outward against a cylindrical drum to transmit drive, while return springs housed within the same cavities retract the shoes upon pressure release. Industry-standard construction for this clutch class typically employs cast or forged aluminium brake shoes with spheroidal graphite iron or alloy steel torque bars, and multi-ply reinforced elastomer tubes rated for cyclic fatigue. The 28-inch size implies greater thermal mass and torque capacity than smaller VC units, though exact ratings require supplier confirmation.

This clutch suits heavy rotating equipment in mining haulage, oilfield drawworks, steel mill drives, and marine propulsion systems where controlled start-up and dynamic braking are essential. Engineering procurement teams and heavy equipment rebuilders represent the core buyer segment, often seeking direct replacements for legacy Airflex installations without redesigning surrounding drivetrain geometry. The 28vc1000 designation specifically targets machinery with 28-inch drum compatibility, a common size in mid-20th century American-designed industrial equipment now maintained with Asian-manufactured replacement components. Sourcing discussions should address drum surface condition, existing air system capacity, and any adapter requirements for non-standard shaft configurations.

Henan Dalin Rubber And Telecommunications Apparatus Co., Ltd is located at 1 Jiushan Road, Huixian, Henan, 453600, China, with this address confirmed through platform verification achieving harbor trust tier status. The response rate of 0.00 percent and zero average response hours indicate no recent messaging activity through the platform portal, which does not preclude responsiveness through direct email or telephone channels. Buyers should not assume communication incapacity but rather verify alternative contact methods during initial outreach. The company name reflects origins in rubber and telecommunications equipment, suggesting diversification or licensing into industrial clutch manufacturing.

This listing presents the 28vc1000 among a broader VC series spanning fourteen sizes from 14vc1000 to 76vc1600, indicating established pattern tooling and product engineering for the ventilated constriction category. No information is provided about factory size, production capacity, years in operation, export volume, or specific client industries served. The source description contains technical detail about mechanical operation but omits quality management certifications, design standards references, or testing protocols. Prospective buyers must independently verify manufacturing competence through factory audit, sample evaluation, or third-party inspection prior to committing to volume orders.