Manufacturing

Component Manufacturing.

Control blocks, sheaves, rollers and crane heaters made to drawing or from the worn sample, when the original is no longer available or too slow to arrive.

Service line 12Hydraulic · Mechanical · ElectricalReport included

Two CranesTech technicians handling finished crane heaters outdoors — Ready to ship

01What we do

Older cranes outlive their parts lists.

Older cranes outlive their parts lists. A control block is discontinued, a maker quotes months for a sheave, or the only heater on offer does not fit the space in the crane house. For these parts we measure the original or work from the drawing, and have a new one made.

Control blocks are machined from solid steel, drilled to the original port pattern and tested before they go on the crane. Sheaves and rollers are made to the groove profile and rope size, fitted with bearings and painted. Crane heaters are built to order in galvanised casings, with thermal insulation, heat-resistant wiring, fan or panel layouts and an isolator on the unit.

Our service team fits what is made, so a part is measured on board, made and installed by people who have seen where it goes.

Steel control block being drilled on a milling machine with coolant — Control block · machining12

What to send us

Drawing, or photos and measurements of the old part
Crane make and model, and where the part sits
For sheaves: rope diameter and sheave diameter. For heaters: voltage and available space
Quantity and required delivery date and port

Describe the job

02Scope

What the service covers.

The work items under this service line, as listed by our engineers.

01
Control BlocksHydraulic control blocks and manifolds machined from solid steel to drawing or to the old block, pressure tested before delivery.
02
SheavesCrane sheaves made to the rope size and groove profile, with bearings, bushes and pins.
03
RollersRope and guide rollers made and supplied to the original dimensions.
04
Crane HeatersFan and panel heaters for crane houses and machinery spaces, in galvanised casings with insulation and isolator switches.
05
Reverse EngineeringWorn part measured and drawn when the drawing no longer exists; material and fits agreed before machining.
06
Machined Spare PartsPins, bushes, flanges and shafts machined to the sample.
07
Fitting on BoardManufactured parts delivered and fitted by our service team, then function tested.

Crane heaters

Fan and panel heaters for crane houses.

Galvanised crane heater casings with axial fans on a workshop floor — Crane heaters · assembly01

Inside a heater casing: thermal insulation, terminal blocks and heat-resistant wiring — Insulation and wiring02

Power cable connected to the heater terminals inside an insulated casing — Terminals03

Panel heaters with perforated covers, red isolator switches and power cables — Panel heaters04

Axial fan and guard on the white end plate of a crane heater — Heater fan05

Two CranesTech technicians fitting a heater in a crane house above the winch drum — Crane house · heater fitting06

Sheaves and rollers

Made new, or supplied to the original size.

Stack of black painted sheaves on a timber crate — Sheave set01

Black painted sheave with its bearing on the shaft — Sheave on shaft02

Yellow sheave set on its pin on a workshop floor — Sheave set03

03Typical jobs

Faults we are called for.

01Discontinued control block: dimensions and ports taken from the old block, new block machined, pressure tested and fitted.
02Worn boom head sheaves: new set made to the rope size and fitted with new bearings at the rope change.
03Crane house too cold for the hydraulics and electronics at start-up: heaters built to the space available, fitted and wired on board.
04Long lead time on a pin and bush set: parts machined from the worn sample and delivered to the vessel.

04Questions