Overhead Crane 10 Ton Heavy Duty Steel Warehouse Building 25m Span Machinery

A crane building is designed around one number that customers rarely bring to the first meeting: the duty cycle. A 10 ton overhead crane running eight hours a day pushes a different fatigue load into the runway beam than the same crane used twice a week. This heavy duty warehouse is arranged as a 25 m span portal frame with crane runway beams on separate brackets, so the vertical wheel load and the horizontal surge go straight into the column line instead of bending the haunch. KXD Steel Structure sizes the runway for your actual duty class, not for a nominal tonnage.

The runway is where most imported crane sheds fail inspection. We weld a full penetration stiffener at each bracket, use a machined rail pad to keep the rail straight within 3 mm over 10 m, and set the runway deflection limit at L/400 under static wheel load. Columns carry a 15 percent reserve for future crane upgrades. If the buyer later installs a second hoist, the frame does not need to be rebuilt, which is the difference between a five year building and a twenty year building.

Clear height is a commercial decision as much as a technical one. With a 9 m eave and a 10 ton hook, effective lift under the hook is normally 6.8 m, enough for a 40 foot container on a trailer plus a spreader. Wall cladding uses 75 mm rock wool sandwich so the interior stays usable in summer, and high level louvers are placed on the leeward wall to let hot air escape without cross draughts at the work floor. Floor level tolerances, anchor bolt templates and grout pockets are all documented before the foundation is poured, which removes the most common cause of erection delay on crane projects.

• Crane runway on dedicated brackets: Wheel loads transferred directly to columns, avoiding haunch bending and rail misalignment
• 25 m clear span: Wide unobstructed bay for machinery assembly, steel coil handling or heavy pallet racking
• Q355B heavy plate frame: Primary members built from 12 to 32 mm plate for the fatigue range of daily crane duty
• L/400 runway deflection limit: Rail stays straight under load, extending wheel and rail life
• 75 mm rock wool wall panel: Thermal comfort and fire performance in a working industrial environment
• Leeward high level ventilation: Heat escapes without draughts across the assembly floor

Machine builders, steel service centres, precast yards and heavy equipment dealers use this configuration when the work floor has to move loads vertically as well as horizontally. It also suits maintenance workshops that service trucks or agricultural machinery under cover, and warehouses storing oversized cargo that cannot be handled by forklift alone. The 25 m bay width matches two 12 m racking rows with a central aisle, so storage density stays high without losing crane coverage.

Runway welding is the critical path. Every bracket stiffener is full penetration welded and ultrasonic tested, and the rail pad seat is machined after welding rather than before, because welding distortion is what makes rails wander. We trial fit the crane rail and measure straightness with a tensioned wire before the members are packed. Anchor bolt templates are supplied as a steel jig, not a paper drawing, so the foundation contractor cannot place bolts by eye. Photographs of each stage are sent to the buyer for approval before shipment.

Runway beams and columns travel as matched bundles with the bracket already welded, wrapped at the rail seat to protect the machined surface. Rails, clips and jigs are crated separately and labelled by grid line. Erection drawings, bolt lists and a torque table are supplied in both PDF and printed form. Warranty covers 10 years on structure and 2 years on painted or galvanized finish, with optional site supervision by our engineer at the buyer's travel cost. Provide your crane tonnage, duty class and building plan to receive a frame layout with runway reactions.