30 Ton Overhead Crane Kits for Sale,
Econoical Overhead Bridge Crane Solutions
30 Ton Overhead Crane Kit without Main Girder, Good Price,Short Lead Time & Sound Support

This mechanism allows the crane and trolley to move smoothly along the runway and main girder. Both complete systems (30 ton overhead cranes) and crane kits (32 ton bridge cranes) include these components, but understanding each part helps buyers plan installation and maintenance.

Wheels: Travel wheels sit on the end girders for bridge movement, and trolley wheels run along the main girder for hoist movement.

• Made of high‑strength alloy steel with precise machining to resist wear and vibration.
• Proper alignment prevents uneven wear and reduces maintenance needs.
• Critical for smooth travel and safety during heavy lifts.

Motor: Drive motors power both bridge and trolley travel.

• Convert electrical energy into motion with controlled speed and torque.
• Variable Frequency Drive (VFD) options allow smooth start/stop and precise positioning.
• Proper motor sizing ensures reliable operation under continuous or heavy-duty cycles.

Reducer (Gearbox): The reducer transmits motor power to the wheels at low speed with high torque.

• Multi-stage gears provide strength for moving heavy loads.
• Durable materials and good lubrication ensure long service life.
• Designed to handle frequent starts and stops in industrial settings.

Brake: Brakes stop the crane reliably and hold it in position.

• Essential for safety under load and inertia.
• In heavy-duty cranes or steel‑plant crane kits, brakes must withstand frequent operation and high temperatures.
• Well-maintained brakes prevent accidents and reduce wear on other components.

Coupling: Couplings connect the motor to the reducer or the reducer to the wheels.

• Absorb slight misalignments and reduce shocks from sudden starts/stops.
• Must be rated for the expected vibration and impact in your facility.
• Proper couplings protect motors, gearboxes, and wheels, extending component life.

Whether your crane kit includes the hoist and trolley or you source them separately, understanding these components is essential for safe and efficient lifting.

Hoist Types:

• Wire Rope Electric Hoist: Common for capacities of 10 tons and above. Provides smooth operation, long travel distance, and high durability.
• Electric Chain Hoist: Compact design, suitable for lighter loads under 5 tons. Requires less space and is easier to install.
• Open Winch Trolley: Used mainly on double‑girder cranes. Trolley assembly sits between main girders and uses a drum and wire rope to lift loads.

• Sheaves: Guide the wire rope and can multiply lifting capacity via blocks. Fixed sheaves change rope direction; movable sheaves travel with the load to reduce required pull force. Proper groove design and alignment minimize rope wear.
• Hooks & Lifting Attachments: Hooks are made of high‑strength alloy steel and usually include safety latches. Double hooks distribute heavy loads more evenly, improving safety and stability—especially important in steel‑mill operations. Attachments such as grabs, clamps, or magnets may be used depending on the material being handled.
• Hoist Motor / Reducer / Brake: Hoist motor provides high torque at low speed, reducer transfers motion with high torque, and brake holds the load securely when lifting stops.
• Drum & Wire Rope: The rope drum collects and releases the wire rope to control lift and descent. Proper groove design, rope guides, and alignment prevent rope overlap, slippage, or fatigue. Wire rope selection must match lifting capacity, fatigue life, and environmental conditions.

These systems power and control the crane's movements. Both complete 30 ton overhead crane systems and 32 ton bridge crane kits include electrical components.

• Busbar (Conductive Rail): Supplies power to the bridge and trolley travels via sliding collectors. Precise alignment and reliable contact are essential.
• Power Supply Cables: Connect motors and control devices, routed via cable carriers or festoon systems. Proper management reduces wear and extends service life.
• Control Methods: Cabin control for operator inside the crane, remote control for wireless operation, pendant wired control for simple lifts. Choose based on layout, lifting frequency, capacity, and operator training.

Note: In crane kits, rails and runway beams are usually not included; they are part of the complete crane system or fabricated locally.

• Rails: Support smooth movement of the bridge along the building structure. Must be strong, wear-resistant, and correctly aligned.
• Runway Beam: Carry the rails and full crane load. Can be I-beams, box girders, or fabricated beams anchored to columns or independent supports. Precise drawings, material specs, tolerances, and alignment procedures are essential for safe operation.

Essential in industrial environments to protect personnel, equipment, and the facility.

• Emergency Power Off (EPO): Instantly disconnects power to prevent accidents.
• Warning Bell / Audible Alert: Alerts personnel before movement begins.
• Overload Limiter: Monitors the load; alarms at ~90 % and cuts power at ~105 %.
• Upper-Limit Switch: Stops the hoist at top travel limit.
• Travel Limit Switches: Stop bridge/trolley at end of travel and allow controlled reverse.
• Lighting: Provides adequate illumination for safe operation.
• Buffers: Installed at ends of travel paths to absorb impact energy.

A 30 tonbridge crane kit requires some level of local fabrication, especially for the main girders and runway:

• Assess whether your team or a local contractor can fabricate main girders to the required steel grade and tolerance.
• Ensure the ability to assemble end trucks, runway connections, and electrical systems according to supplier specifications.
• Check whether welding, coating, and alignment capabilities meet the manufacturer's standards.

Even with the best crane kit, installation can fail if your facility isn't prepared:

• Runway beams – Must be straight, level, and designed for 32 t loads.
• Foundations – Columns and supports need to handle the crane's weight and dynamic forces.
• Installation equipment – Cranes, lifts, or jacks for raising and assembling the kit components.
• Commissioning teams – Skilled technicians to align, test, and calibrate the crane after assembly.

If you plan to purchase multiple overhead bridge crane kits:

• Ordering in batches may reduce cost per unit.
• Suppliers may offer faster delivery or technical support for large-volume orders.
• Check if your facility can handle multiple crane installations at once without interfering with ongoing operations.

International buyers need to account for factors beyond just the crane itself:

• Shipping distances – Large components may require special transport or handling.
• Local regulations – Electrical, safety, and structural codes vary by country.
• Power supply compatibility – Confirm voltage, phase, and frequency match your facility's systems.

Several elements can affect the overall schedule for overhead bridge crane kits:

• Custom specifications – Any changes from standard designs, such as extra lift height or span modifications, may extend production.
• Component size/weight – Larger hoists, trolleys, or end trucks require longer manufacturing, special transport, and careful handling.
• Global shipping – Customs clearance, port congestion, and long-distance freight can introduce delays, especially for international buyers.

To manage lead time effectively, buyers can take practical steps:

• Staggered delivery – Receive critical components first, like hoists and trolleys, while main girders are fabricated locally.
• Local fabrication of main girders – Reduces shipping delays for oversized steel structures and allows adjustments to fit your facility.
• Buffer time planning – Always add 10–20% extra time to account for unforeseen delays in production, shipping, or installation.

Planning for lead time in detail ensures your 30 tonbridge crane kit is delivered, installed, and operational without unnecessary stress or cost overruns. Proper scheduling can also improve coordination between suppliers, local fabrication teams, and installation crews.

When calculating the landed cost of a 30 tonbridge crane kit, consider:

• Customs duties – Percentage of the value of imported goods, which varies by country and HS code.
• VAT/GST – Value-added tax applied on imported equipment.
• Brokerage fees – Charges by customs brokers who handle documentation and clearance.
• Handling costs – Additional fees for moving heavy components at ports, warehouses, or between transport modes.

• High tariff exposure – Large or heavy components like main girders, end trucks, and hoists may attract higher tariffs than smaller parts.
• Documentation errors – Missing certificates or incorrect HS codes can delay clearance and increase demurrage costs.
• Unexpected charges – Some countries apply extra fees for oversized or high-weight shipments, which is common for 32 t crane components.

To reduce landed costs and avoid surprises:

• Source from countries with favorable trade agreements – Look for suppliers in regions that have lower tariffs or free trade agreements with your country.
• Local assembly – Import only critical components like hoists and trolleys while fabricating main girders locally to reduce import duties.
• Negotiate shipping terms – Using CIF, FOB, or DDP terms can help control shipping risk and clarify which party handles duties and customs clearance.
• Plan documentation carefully – Ensure all technical certificates, drawings, and invoices are accurate and ready before shipping.

A standard 30 ton overhead crane kit generally includes:

• Hoist and trolley – Rated for 32 t lifting, tested at the factory.
• End trucks – Wheels, motors, and drive systems for bridge movement.
• Control system and electrics – Push buttons, pendant control, or radio control with safety features.
• Safety components – Limit switches, overload protection devices, and wiring.

• Drawings approval – Ensure that fabrication drawings match the supplier's design specifications.
• Welding standards – Use certified welders and follow recommended welding procedures for steel grades.
• Coating – Apply corrosion protection if required, particularly in humid or industrial environments.
• Factory tests – Hoists, trolleys, and control systems should undergo Factory Acceptance Testing (FAT) before shipment.

• Steel grade – Confirm the local steel used meets supplier specifications for strength and durability.
• Dimensional accuracy – Check girder straightness, flange and web alignment, and connection points.
• Crane alignment – Ensure end trucks are properly aligned on runway beams to prevent uneven wear or stress.
• Site welding – Follow proper welding procedures and inspect joints for quality and safety.

• Cost and lead-time savings – Kits are usually cheaper and faster to ship because large girders don't cross borders.
• Flexibility – Local fabrication allows minor adjustments to suit facility constraints.
• Responsibility – Buyers must have skilled teams to fabricate, assemble, and align the crane correctly.
• Turnkey alternative – A turnkey crane reduces on-site work but comes at higher cost and shipping complexity.

Choosing a 30 tonbridge crane kit is ideal for buyers who want to balance quality, cost, and flexibility while maintaining control over the installation process. Proper planning and attention to quality during local fabrication ensure long-term reliability of the crane.

• Warranty coverage – Ensure that the supplier offers clear terms covering mechanical, electrical, and control components.
• Spare parts availability – Hoists, trolleys, limit switches, drives, and control components should be available for years after installation.
• Technical assistance – Remote troubleshooting and optional onsite visits can help resolve issues faster and avoid prolonged downtime.

Critical spares for overhead bridge crane kits include:

• Limit switches and sensors
• Wire rope or chain
• Gearbox, motors, and drives
• Electrical components and fuses

Maintaining a small inventory onsite ensures that minor failures can be addressed immediately, keeping production moving.

• The total cost of a crane is not just the purchase price. Maintenance, parts replacement, and periodic inspections all contribute to long-term expenses.
• Proper upkeep reduces the likelihood of catastrophic failures and extends the service life of your 30 tonbridge crane kit.
• Planning for regular inspections, lubrication, and load testing protects both the crane and the people operating it.

• Establish a maintenance schedule based on the manufacturer's recommendations and duty cycle.
• Train local staff in basic inspections, daily checks, and reporting procedures.
• Consider a service contract with the supplier or a certified local partner for yearly inspections and preventive maintenance.
• Keep detailed records of repairs, parts replacements, and inspections to ensure compliance with safety standards.

Ensure your contract clearly defines:

• Scope of supply – Components included in the kit, excluding main girders if applicable.
• Lead time – Production, testing, and delivery schedules.
• Shipping schedule – Method, estimated transit time, and handling requirements.
• Testing requirements – Factory Acceptance Testing (FAT) and on-site testing.
• Payment terms – Clear milestones linked to production or delivery stages.

For international purchases, verify:

• HS codes – Correct classification for customs clearance.
• Duties and taxes – Estimate import tariffs, VAT/GST, and handling fees.
• Regulatory compliance – Local safety, electrical, and structural standards.

Prepare your facility for smooth assembly and commissioning:

• Runway beams – Properly aligned and capable of supporting the 32 t crane.
• Lifting equipment – Cranes, jacks, or forklifts for assembly.
• Installation team – Skilled personnel for assembly, welding, and alignment.
• Utilities – Electrical supply compatible with crane components.
• Commissioning plan – Testing schedule, adjustments, and operator training.

Plan for long-term support and maintenance:

• Warranty terms – Coverage for mechanical, electrical, and control components.
• Spare parts – Availability of critical items such as hoists, trolleys, ropes, and drives.
• Service contacts – Supplier support for remote troubleshooting or onsite visits.
• Training schedule – Operator and maintenance staff education for safe operation.

• Main girders are usually fabricated locally, tailored to your workshop span and building supports.
• Check material grade, welding quality, and alignment to ensure smooth crane operation and long service life.
• End girders and other kit-included parts must integrate precisely with the locally fabricated main structure.

• Wire rope electric hoists are recommended for heavy loads; they provide durability and long travel distances.
• Chain hoists are suitable only for lighter loads or secondary auxiliary lifting.
• Double-hook trolleys help distribute heavy loads evenly and increase safety in steel mill operations.

• Include overload limiters, upper-limit switches, travel-limit switches, and buffers.
• Emergency power off (EPO) and warning alarms must be properly installed and tested.
• Safety devices protect both personnel and equipment in harsh, heavy-duty industrial environments.

• Select the right control method: cabin, pendant, or remote control depending on operator experience and plant layout.
• Ensure busbars, cables, and control systems are compatible with local power supply and environmental conditions (dust, heat, moisture).
• Proper cable management and VFD options for motors improve precision, reduce wear, and extend service life.

• Rails and runway beams are not included in the crane kit, but correct fabrication and alignment are crucial.
• Ensure parallelism, levelness, and deflection limits to prevent uneven wear, vibration, or operational issues.
• Locally fabricated runway structures must comply with design tolerances and support dynamic loads safely.

• Schedule routine inspection of wheels, brakes, wire ropes, hoist drums, and electrical components.
• Plan for easy access to critical parts for lubrication, adjustments, or replacement to reduce downtime.
• Use protective covers and corrosion-resistant components in hot, dusty, or harsh steel mill conditions.