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Suman

Pulley & sheave specialists · Mayapuri, Delhi

Elevator sheaves and pulleys, machined to your drawing.

We turn, groove and balance diverter sheaves, main & traction sheaves and lift pulleys in our Mayapuri workshop — made to your spec or sample, not off-the-shelf.

Custom machining · to drawing or sample · Delhi NCR

25+ yrs

Machining experience

±0.02 mm

Achievable tolerance

Ø 800 mm

Max turning diameter

To drawing

Custom-made, not off-the-shelf

Not a reseller — a machine shop

An elevator parts manufacturer, not a reseller — custom machining to your drawing.

Bring a drawing, a worn part or just a requirement. We machine it to size — the way a real manufacturer should.

Made to drawing

Send a PDF or DWG and we manufacture to your dimensions, tolerances and finish.

Reverse-engineered

No drawing? Send the worn sheave or a sample and we measure and reproduce it.

Prototype to batch

One-off first article, then repeat batches held to the same spec.

Real specifications

Every part comes with a real spec sheet.

Most suppliers give you a picture and a phone number. We publish the material, sizes, groove profile and bore for what we make — so your engineers can quote and design with confidence.

See all specifications
Undercut-U groove profile
MaterialCast iron FG260 · EN8 on request
Outer diameter240 – 640 mm
Groove profileSemicircular (U) with undercut
No. of grooves3 – 8
Rope diameter8 · 10 · 13 mm
Bore30 – 80 mm, H7
Hardness180 – 220 BHN
BalancingStatic
FinishMachined + primer/enamel

Diverter Sheaves — representative spec

Have a drawing or a sample? Let’s machine it.

Send your spec and we’ll come back with a quote and a realistic lead time — no obligation.

Quote on WhatsApp