Up to 12 t on a single girder and 160 t on a double girder, over spans of 32 m as standard. Send us your load, your span and your site conditions, and our engineering team sizes the structure and the duty class to them.
A gantry crane, also called a portal crane, carries its bridge on legs that travel on rails at ground level. Because the load path runs down the legs to the rails, no runway is needed on the building structure. That makes it the usual choice for open yards and for long spans.
A gantry with both legs on the floor is a full gantry; heavy shipyard machines of this type are often called Goliath cranes.
Type selection
Start with the building. An overhead travelling crane (EOT crane) runs on a runway carried by the columns and the roof steel, so that structure has to be designed, or verified, for the crane's wheel loads. A gantry crane takes the same bridge and stands it on legs that run on rails in the ground.
It is not free. The legs sweep a corridor at floor level, and the rails have to stay aligned on a foundation that carries the wheel loads for the crane's whole life. Where the space problem sits on one side of the building only, a semi-gantry usually answers it with less structure.
Diagram comparing gantry, overhead travelling and semi-gantry crane load paths.
| Criterion | Gantry crane (this page) | Overhead travelling crane (EOT) | Semi-gantry crane |
|---|---|---|---|
| Where the load path goes | Down two legs to ground rails | Into the building columns and roof steel | One leg to a ground rail, one side to an existing runway |
| Building requirement | No crane runway needed on the structure | Runway and structure sized for the crane | Runway needed on one side only |
| Typical site | Open yard, or a building that cannot carry a runway | Enclosed building with crane-rated steelwork | Building with a runway on one side, floor traffic on the other |
| Floor space | Legs sweep a corridor at floor level | Floor left clear | One leg only |
| ABRA capacity | 12 t single girder · 160 t double girder | 250 kg – 12 t single girder · 250 kg–160 t double girder | see semi-gantry |
| ABRA span | 32 m as standard | ~30 m (single) / ~32 m (double) as standard | see semi-gantry |
| ABRA page | This page | Double girder · Single girder | Semi-gantry crane |
If the building can carry a runway, compare the double girder overhead crane and the single girder overhead crane first. If it cannot, or if the work is outdoors, send us your load, span and site and an engineer will confirm the structure with you.
Our approach
Two things outside the crane decide how a gantry behaves: the rail it runs on and the ground under it.
So we start from the site. Capacity, span and duty class come from your load and your cycle, and the wheel and foundation loads that follow are calculated and issued per project. Getting that exchange right at the start is what keeps a rail straight long after handover.
Where the crane works outdoors, the duty is engineered around the conditions at your site. Temperature, wind and ground conditions go into the calculation, and the outdoor protection package is agreed with you before manufacturing starts.
The hoist unit is built in our own plant in İzmir, along with the steel structure and the end carriages and wheel groups — and an operator cabin where the project calls for one. The machine and the structure are built together, so the lifting characteristic and the structure carrying it come out of one engineering office. It also settles a quieter question: years from now, whose door do you knock on for a wheel group?
Manufacturing
“From our plant ” to your yard.
Girder and leg manufacturing, end-carriage and wheel-group machining, and rail-level installation on site.
Technical data
Read each value with what it does for the lift — that is how the crane is actually sized for your yard.
Our gantry cranes reach 12 t on a single girder and 160 t on a double girder as a standard selection — above 160 t we engineer per project — over spans of 32 m as standard — longer spans are engineered as a special project. The exact capacity-to-span pairing is calculated per project, because a longer span lowers what a given girder can carry.
Motion runs on inverter (VFD) control for soft starts and low-sway positioning. Hoisting is stepless with micro-speed positioning: 0–4 m/min as the standard speed, coming down to about 0–2.3 m/min at the top of the range. Lifting height, leg height and travel length are set from the dimensions of your site.
| Parameter | Value | Consequence / note |
|---|---|---|
| Lifting capacity — single girder | up to 12 t | Covers yard handling, workshop and stock work |
| Lifting capacity — double girder | up to 160 t | Heavy and long-span work; structure sized per project |
| Span | 32 m as standard | Longer spans engineered as a special project; a longer span lowers capacity — exact pairing per project |
| Lifting height / hook path | per project | Set from your stack height, berth or building clearance |
| Leg height / clear headroom under the bridge | per project | Sets what can pass under and between the legs |
| Girder type | Single or double girder | Double girder for higher capacity and hook height |
| Duty class | FEM 1Bm–5m (ISO M3–M8), per project | Sized to your load spectrum × running hours; multi-shift or continuous process work raises the class |
| Hoisting speed | Stepless, inverter-controlled — 0–4 m/min standard; 0–3.5 / 0–3.6 at 6.3 · 12 · 12.5 · 16 t; 0–2.3 … 0–3.4 from 30 t to 160 t | Standard crane speeds; micro-speed for accurate positioning |
| Trolley travel speed | 4–16 m/min to 2 t · 5–20 from 3.2 to 20 t · 5–20/25 at 25–32 t · 5–20/25/30 from 40 t | Matched to span and cycle; soft start protects rail and legs |
| Bridge travel speed | 5–20 m/min to 20 t · 5–20/25/30 from 25 t | Set with the span and the cycle |
| Motion control | Inverter (VFD) | Soft start/stop, reduced load sway, gentler on structure and rail |
| Power supply | 380–415 V / 50 Hz (60 Hz for export) | Matches local and export grids |
| Protection class | IP54 / IP55 (motor and panel) | Dust and moisture protection |
| Ambient temperature | −10 … +50 °C | Standard band; outdoor duty engineered per project |
| Max wheel load / foundation loads | Calculated and issued per project | Needed before the rail and its foundation are designed |
| Control | Radio remote / pendant / operator cabin | Operator cabin made in-house |
| Safety | Overload switch + load cell (standard) · travel limit switches | Overload protection under EN 14492-2 |
| Standards | EN 13001 series · EN 15011 · EN 14492-2 · EN ISO 13849-1 / -2 · EN IEC 60204-32 · FEM 9.511 (complementary) · CE · ISO 9001 | Duty class stated per project |
The speeds shown are standard values; other speeds are provided on request. Where a value depends on your site, it is written “per project” and confirmed with you.
| FEM (mechanism) | ISO M | Typical use |
|---|---|---|
| 1Bm | M3 | Light, single shift |
| 2m | M5 | Medium/heavy, 1–2 shifts |
| 4m | M7 | Very heavy, 2–3 shifts |
| 5m | M8 | Continuous / severe duty |
ABRA gantry range: FEM 1Bm–5m (ISO M3–M8), per project — see the duty class guide.
Equipment
Each option below answers a specific problem that shows up on a gantry:
Over long spans and outdoor work, the operator needs a view of the load from above. Fixed, or travelling with the trolley. Radio remote and pendant push-button are the alternatives; see operator cabins.
A long-span bridge on ground rails punishes hard starts. Soft acceleration keeps the load steady and takes the shock out of the rail and the legs.
An overload switch and a load cell are standard, so the crane refuses a lift beyond its rating.
The legs move where people walk, so travel limit switches are specified with the crane.
Position memory, target positioning and repeat moves for a yard that runs the same route all day. The operator stays in control; this is assisted automation. ABRA Crane Tracking can be added as the data layer for usage, condition and maintenance.
A second brake circuit holds the load if the first fails; specified for critical lifts.
Where the yard or the building is a classified area, the same crane is engineered as an explosion-protected system for gas Zone 1–2 or dust Zone 21–22; see Explosion-protected cranes.
Applications
Each of these sites has the same thing in common: the lift happens where a roof cannot carry it, or where the span is too wide for one.
Type routing
A full gantry runs on two legs, both on ground rails. A semi-gantry runs on one leg at floor level while the other side travels on an existing runway on a wall or a column line. Where one side of the building already has a runway, or where floor traffic on that side cannot be given up, the semi-gantry recovers the space a second leg would take.
The choice is usually decided by what already exists in the building. Compare both on the semi-gantry crane page, or send us a general arrangement drawing and an engineer will mark the options on it.
Project process
Four steps, so a committee can see the whole route before committing:
Load, span, cycle, indoor or outdoor, and the ground the rail will sit on.
We confirm the duty class, calculate and issue the wheel and foundation loads the crane transfers, and flag any spec deviation before you sign.
Hoist unit and steel structure built in our own plant, then erected and commissioned on your rail.
Scheduled maintenance under an annual contract, spare parts and modernisation.
After-sales
A gantry lives outdoors more often than not, and what wears first is usually down at rail level: the wheel groups and the travel drives. We build the end carriages and wheel groups ourselves, so we know what to look at and when. Maintenance is agreed under an annual contract covering 4 visits a year, with on-site response within 48 hours of a call, anywhere in Türkiye. Warranty is 2 years. Crane Contact Center 444 8 440.
We also service, supply parts for and modernise cranes we did not build, so a mixed yard can be maintained under one contract. See after-sales service.
FAQ
An overhead travelling crane runs on a runway carried by the building, so the columns and roof steel take the crane's wheel loads. A gantry crane carries the same bridge on legs that travel on ground rails, so nothing is carried by the building. That is why a gantry is chosen for open yards, and for buildings whose steelwork was never sized for a crane.
Our gantry cranes reach 12 t on a single girder and 160 t on a double girder, over spans of 32 m as standard; longer spans are engineered as a special project. The capacity you can run at a given span is calculated per project, because a longer span lowers what a girder can carry. Send us your load and span and an engineer will confirm the combination.
A full gantry stands on two legs, both on ground rails. A semi-gantry has one leg at floor level and runs the other side on an existing runway on a wall or column line, which frees the floor on that side. If one side of your building already has a runway, the semi-gantry is usually the more economical structure; the comparison is on the semi-gantry crane page.
Yes, and outdoor work is the most common reason to choose one. The standard ambient band is −10 to +50 °C, and outdoor duty is engineered per project: your site's temperature, wind and ground conditions go into the structural calculation, and the protection package is defined with you before manufacturing. Tell us where the crane will stand and we will size it for that site.
Get a recommendation
Send us the load, the span, the cycle and where the crane will stand. An engineer confirms the structure, the duty class and the foundation loads with you — no obligation.
Your details are used only to answer your request
Designed and built to EN, FEM and ISO standards · CE marked · duty class defined per project (our build range: FEM 1Bm–5m / ISO M3–M8) · manufacturing in İzmir since 2004
