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Semi Goliath Crane

Single Girder Semi Goliath Crane

Hybrid crane: one end runs on an elevated gantry rail on your building column, the other on a leg travelling on a floor rail. Perfect for extending crane coverage into bays where overhead rails exist on only one side. Up to 15 Ton capacity, IS:3177 design.

Capacity	1 – 20 Ton
Span	Up to 50 m
Lift Height	Up to 15 m
Hoisting Speed	Normal: 2 – 3 MPM VVFD: 0.3 – 2.5 MPM through VVFD Drive
CT Speed	Normal: 10 – 12 MPM VVFD: 1.7 – 12 MPM through VVFD Drive
LT Speed	Normal: 15 – 18 MPM VVFD: 1.5 – 15 MPM through VVFD Drive
Elevated Side	End carriage on gantry rail
Floor Side	A-frame leg on CR rail
Hoist	WRH
Control	Pendant / Radio Remote
Duty Class	Class II / III
Standards	IS:3177 · IS:807

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Technical Details

Built To Standard, Tested Beyond It

Sync DriveMatched LT speeds both sides

Floor RailCR-60 embedded / surface

Leg DesignBraced A-frame

Skew ControlGuide rollers + VFD

Testing125% SWL load test

ErectionLive-plant installation possible

Wind RatingIS 875 for outdoor bays

CantileverOptional one / both sides

The ETC Quality Promise

125% SWL load test before every dispatch, documented & stamped
IS:2062 tested plates with mill certificates on file
IS:3177 / IS:4137 / FEM 1.001 compliant design calculations
Stress-relieved fabrication at critical welded joints
ISO 9001:2015 certified manufacturing process

About This Product

Engineered For Indian Industry

Semi Goliath cranes solve an awkward but common problem: one side of the bay has a crane rail on building columns, the other side has nothing — an open yard, a lean-to, or a newer extension. Rather than build a full second runway, the crane's far end simply rides a floor rail on its own leg.

The engineering challenge is keeping both ends synchronised; ETC uses matched geared motors with VFD control and guide rollers so the bridge tracks true without crabbing. Installation typically happens without stopping your existing operations.

Rail on one side only?

Send bay photos and column details — we confirm the semi-goliath layout and quote in 24 hours.

Key Features

Half the civil cost — one elevated rail only
Extends existing bays — into yards and lean-tos
Synchronised drives — no skew, no rail wear
Live installation — minimal production loss
Custom leg heights — clear existing machinery
125% load tested — with certificate

Applications

Where This Machine Earns Its Keep

Steel & Rolling Mills

Billet handling, coil movement and furnace charging in continuous duty cycles.

Fabrication Workshops

Positioning heavy weldments and machined assemblies with precise inching control.

Foundries & Forging

Ladle handling and die movement engineered for heat and dust environments.

Warehousing & Logistics

Fast, safe loading and unloading across storage bays and dispatch yards.

Infrastructure Projects

Precast segment and girder erection at bridge, metro and dam sites.

Power & Energy Plants

Turbine hall maintenance cranes built to strict duty classifications.

Safety First

Safety Features As Standard

Overload Limiter

Electronic load cell cuts hoisting the moment load exceeds rated SWL.

⬆ Upper/Lower Limit Switches

Rotary geared and counterweight limits stop hook over-travel in both directions.

Motion Warning Hooter

Audible alarm and flasher warn floor staff during LT/CT travel.

Fail-Safe DC Brakes

Electromagnetic brakes engage automatically on power failure — load holds instantly.

Pendant + Radio Remote

IP-65 push-button pendant with optional wireless remote and emergency stop.

Panel Protection

SPP, overload relays and single-phase preventers protect motors and VFDs.

FAQ

Questions Buyers Ask Us

We build single girder semi goliath cranes from 1 to 20 Ton, with spans up to 50 metres. Every unit is designed to IS:3177 / IS:4137 and FEM 1.001 duty classifications, and custom capacities are engineered on request.

A Semi Goliath is ideal when one side of your building already has an elevated runway and the other side needs a floor-mounted leg — it saves structural steel compared to a full Goliath crane.

Yes, the A-frame leg runs on a floor-mounted rail and can be repositioned if your shop layout changes.

It is half gantry, half EOT: one side runs on an elevated runway beam like an overhead crane, the other travels on a floor rail on an A-frame leg. It suits bays where a runway exists on one side only.

Only a ground beam with a grouted CR rail on the leg side, plus the existing gantry girder on the elevated side. We supply rail, clamps, anchor details and the static and dynamic wheel loads for your civil contractor.

Both travel drives run on synchronised VFDs with guide rollers so the elevated end carriage and the floor-side leg advance together, preventing skew across the span.

Single girder semi goliath cranes are built from 1 to 20 Ton with spans up to 50 metres, using a wire rope hoist on the girder — the economical option for medium duty handling.

Often yes. If the existing gantry girder and columns can take the extra wheel load, we design the crane to share the runway on one side and run on a new floor rail on the other.

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