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Suman

Products & capabilities

Machined lift components, with the specs to prove it.

Everything here is turned, grooved and balanced in-house and made to your drawing or sample. Sizes and options are indicative ranges — send your requirement for an exact quote.

Diverter Sheaves — Deflector / idler sheaves that route the rope with a true running face.
  • Groove pitch cut to your rope spec
  • Bore + keyway to your shaft drawing
  • Bush / bearing housing on request

01 — Deflector / idler sheaves that route the rope with a true running face.

Diverter Sheaves

Precision-turned diverter (deflector) sheaves for machine-room and machine-room-less lifts. Concentric grooves cut to your rope pitch, statically balanced, and bored to your shaft for quiet, low-wear rope travel.

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
Request a quote for Diverter Sheaves
Main & Traction Sheaves — Drive sheaves with hardened, profile-ground grooves for traction and grip.
  • Groove angle + undercut to traction requirement
  • Reverse-engineered from your worn sheave
  • Matched to specific machine models

02 — Drive sheaves with hardened, profile-ground grooves for traction and grip.

Main & Traction Sheaves

Traction (drive) sheaves machined for the geared or gearless machine. Undercut-U or V grooves cut for correct traction and even rope loading, with the groove faces hardened for service life. Made to sample or drawing.

V-groove profile
MaterialDuctile iron SG500 · cast steel on request
Outer diameter320 – 800 mm
Groove profileUndercut-U · V (35° / 40°)
No. of grooves3 – 8
Rope diameter8 · 10 · 13 mm
Bore / mountTo machine shaft — taper or keyed
Groove hardnessInduction-hardened faces
Runout≤ 0.10 mm TIR
FinishMachined + primer/enamel
Request a quote for Main & Traction Sheaves
Lift Pulleys — Compensating, governor and deflector pulleys with sealed bearings.
  • Bare wheel or bearing-fitted assembly
  • Bracket / axle to your pit drawing
  • Single or twin-groove

03 — Compensating, governor and deflector pulleys with sealed bearings.

Lift Pulleys

Compensating, overspeed-governor and deflection pulleys turned to run true. Supplied bare or fitted with sealed bearings and housing so the assembly drops straight into the pit or car frame.

Round rope seat
MaterialCast iron · EN8
Outer diameter100 – 400 mm
Groove profileRound seat, single/multi
Rope / cable6 – 13 mm
BoreSealed bearing housing (6204–6208)
BalancingStatic
FinishMachined + primer/enamel
Request a quote for Lift Pulleys
Custom Lathe & Machining — General turning, boring and profiling — bring a drawing or a sample.
  • Manufacture to your drawing (PDF/DWG)
  • Reverse-engineer from a physical sample
  • Prototype then repeat batches

04 — General turning, boring and profiling — bring a drawing or a sample.

Custom Lathe & Machining

Beyond sheaves, our lathes take on general precision turning for the lift and engineering trade — shafts, bushes, flanges, spacers and one-off components. Send a drawing or a physical sample and we machine to it.

Turning diameterUp to Ø 800 mm
Turning lengthUp to 1500 mm
MaterialsMS · EN8 · EN9 · cast iron · SS · bronze · aluminium
OperationsTurning · boring · facing · threading · drilling · keyway
ToleranceUp to ±0.02 mm
BatchOne-off to small batch
Request a quote for Custom Lathe & Machining

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.

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