R K ENGINEERING WORKS is a gantry crane manufacturer in Rajasthan, based in VKI Area, Jaipur, since 1998. We design, build, install and test gantry, semi-gantry and goliath cranes for open yards and plants where a building cannot carry a crane. Every crane is custom-engineered to IS 3177 and IS 807, load-tested at 125% before handover, and supplied with a full document set. ISO 9001, 14001 and 45001 certified.
Request an engineering consultation | Book a site survey
When is a gantry crane the right choice?
- The work area is outdoors – stock yards, rail sidings, precast yards, scrap and steel yards.
- The building cannot take crane load on its columns, or there is no building.
- You need to load and unload trucks or wagons directly under the hook.
- You want to extend an indoor EOT crane line out of the shed (semi-gantry or cantilever gantry).
Types we build
| Type | How it works | Where it fits |
|---|---|---|
| Single girder gantry | One girder, electric wire rope hoist runs below it | Light to medium loads, workshops, small yards |
| Double girder goliath | Two girders, crab runs on top | Heavy loads, long spans, high duty – steel, precast, power, railway |
| Semi-gantry | One end on a leg on a ground rail, other end on a rail on the building wall | Along a building side, part indoor work |
| Cantilever gantry | Girder extends past one or both legs | Loading trucks or wagons outside the leg line |
| Portable gantry | Small gantry on wheels, no fixed rail | Maintenance work, small lifts |
What we need from you
| Input | Why it matters |
|---|---|
| Safe working load (ton), plus auxiliary hoist if any | Sizes girders, wheels, motors, brakes |
| Span and cantilever length | Girder depth, leg design, deflection |
| Lift height above rail, and depth below rail if any | Rope drum length, leg height |
| Long travel length | Rail length, power supply method |
| Duty (lifts per hour, hours per day) | Duty class as per IS 3177 |
| Site location, open or covered | Wind load (IS 875 Part 3), dust, heat |
| Type of load (stone block, coil, precast beam, container) | Hook, lifting beam, magnet or spreader |
| Power supply and control | Panel and safety design |
Built for Rajasthan outdoor conditions
- Wind: structure checked for working and storm wind using IS 875 (Part 3). An anemometer alarms and stops the crane above the working limit; rail clamps or storm anchors hold it when parked.
- Heat: yard temperature can cross 45 C. Higher insulation class motors, ventilated or air-conditioned panels where needed, sun canopies.
- Dust: marble, granite, cement and fly-ash dust – enclosed gearboxes, sealed bearings, IP55 or better motors and panels.
- Corrosion: blast cleaning, zinc-rich primer and epoxy / PU finish for long outdoor life.
- Power to the crane: cable reel drum or festoon system chosen for your travel length.
Safety systems
- Overload limit switch on every hoist
- Upper and lower hoist limit switches; travel end limits
- Rail clamps and buffers at rail ends
- Anti-collision sensors where two cranes share a rail
- Travel warning siren and flashing light
- Emergency stop on pendant or remote and on the panel
- VFD drives for smooth start and stop, less load swing
Documents and tests you receive
| Stage | What you get |
|---|---|
| Design | GA drawing, structural calculation (IS 807), wheel load data for your civil team |
| Manufacturing | QAP, material test certificates, inspection report |
| Before dispatch | Factory checks of hoist, brakes and panel |
| At site | No-load run, rated-load run, deflection check, 125% static load test as per IS 3177, test certificate |
| Handover | O&M manual, spares list, operator briefing |
Third-party inspection by your nominated agency is welcome at any stage.
Industries and areas we serve
Marble and granite yards (Kishangarh, Rajsamand, Udaipur), precast concrete plants, steel and pipe stock yards, cement and power plants, railway workshops and sidings, solar and infrastructure project yards, and large warehouses in Bhiwadi, Neemrana and Jaipur RIICO areas. We serve Jaipur, Ajmer, Kishangarh, Udaipur, Rajsamand, Jodhpur, Kota, Bhilwara, Alwar, Bhiwadi, Neemrana, Sikar, Bikaner – all Rajasthan, North India and pan-India projects.
After handover: planned maintenance through our crane AMC, spares support, and modernisation of older cranes.
Frequently asked questions
What is the difference between a gantry crane and a goliath crane?
Both run on legs on rails at ground level. In India, “goliath crane” usually means a heavy double girder gantry crane with a crab on top of the girders. A gantry crane can be single or double girder.
Which standard is used to design a gantry crane in India?
IS 3177 covers EOT and gantry cranes. IS 807 covers structural design, erection and testing. For outdoor cranes, wind load is taken from IS 875 (Part 3). Hoists follow IS 3938.
Do you need civil work for a gantry crane?
Yes. The crane needs rails on a level foundation beam. We give the wheel loads and rail details so your civil team can design the foundation.
Share your load, span and site details: Request an engineering consultation. Price on request after site study.