HENGLI Hengda Superhard HENGLI
EN
18039205517 Enquire
Diamond pellets and superhard consumables
Est. 2020 · Xingyang, Henan · Manufacturer

Diamond pellets
for optical cold working

Pellets formulated by glass type, custom profile tooling, diamond micron powder and polishing consumables — for precision grinding of optical lenses, sapphire, automotive lighting glass and prism chamfers. Grit and bond matched to your process.

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  • 5product lines / 15 products
  • W0.5–W100micron powder range
  • 4main industries
  • Custommade to drawing
01 / Products

Products

Pellets are specified by glass type, not by grit alone. Choosing the wrong grade is more common than choosing the wrong grit.

View all 15 products
02 / Applications

Applications

Superhard consumables prove themselves in the process. These four areas account for most of our shipments.

  • Optical lens grinding

    Roughing, fine grinding and polishing of K9, ZF flint and quartz optics, with pellets matched to lapping plates.

  • Sapphire & hard-brittle materials

    Thinning and grinding of watch crystals, windows and substrates — material-specific formulations balance removal rate against chipping.

  • Automotive lighting glass

    Curved fine grinding and edge chamfering of borosilicate lenses and lamp covers, plated to the lamp geometry.

  • Prisms & profile chamfering

    Edge chamfering and groove forming on prisms and flat glass; profile and groove tools made to drawing.

03 / Why Hengda

Why
Hengda Superhard

We are not a catalogue trader. We do one thing well: diamond pellets — formulated by material, formed to drawing, consistent batch to batch.

About the company

  1. Formulated by glass type, not one grade for all

    K9, ZF, borosilicate and sapphire differ widely in hardness and brittleness. Bond hardness and concentration are adjusted separately to reduce chipping and scratching.

  2. Profiles formed to drawing

    Profile pellets, groove and chamfer moulds and prism chamfering discs are machined to drawing, sample or scanned part. Small batches welcome.

  3. Matched sets cut fitting time

    We supply matched sets by plate diameter, carrier count and fixture interface, so your operators can load and run.

  4. Stable batches, long-term supply

    Fixed process parameters and raw material sources; long-term customers can lock a batch specification.

04 / Grit

Grit and process stage

Grit numbers follow the GB/T 2481 series — the lower the number, the finer the grain. These are the grades most used on the shop floor.

GritParticle sizeTypical stageCommon bond
W4040 – 28 μmRoughing, stock removal, high removal rateBronze / resin
W2828 – 20 μmRoughing finish, form correctionBronze
W1414 – 10 μmSemi-finishing, even stock for fine grindingBronze / resin
W77 – 5 μmFine grinding, size and roughness controlResin
W3.53.5 – 2.5 μmSuper-finishing, removing the damaged layerResin
W1.51.5 – 1 μmPolishing, mirror finishResin / pad

Note: typical relationships only. Micron powder covers W0.5 – W100. Final selection depends on material, spindle speed and pressure. Read the selection guide →

Tell us the part and the process

Glass type or workpiece material, stock to remove, target roughness and machine model — we will suggest a grit and bond combination, and send samples if needed.

Contact us Visit our shop
05 / About

Zhengzhou Hengda Superhard Material Co., Ltd.

Founded in April 2020 in Dazhang Village, Gaocun Township, Xingyang, Zhengzhou, Henan. Legal representative: Yu Weibin. Business scope: manufacture and sale of superhard materials and products, diamond products, abrasives and metal powders; machining of machinery parts.

Telephone
+86 180 3920 5517

Mon–Sat 8:30 – 18:00 (GMT+8). Call for selection and pricing.

Address
No. 70 Dazhang Village, Gaocun Township, Xingyang, Zhengzhou, Henan, China

Please call ahead to arrange a visit.

Online shop
hljgs.taobao.com

Standard sizes can be ordered online; contact us for custom parts.