Shengjian Fanrong manufactures custom cast iron mobile crane counterweights for crane manufacturers, equipment suppliers, and aftermarket service providers requiring application-specific balancing components for heavy lifting equipment.
Unlike standard weight blocks, mobile crane counterweights are developed according to the structure and operating requirements of individual crane models. The required weight, mounting configuration, installation position, and casting design must work together with the crane chassis, boom system, and operating conditions.
Based on customer drawings, existing samples, or technical specifications, Shengjian Fanrong develops and manufactures replacement and OEM counterweight castings for different mobile crane applications.
Mobile cranes operate under changing load conditions during lifting, boom extension, and slewing operations. The counterweight is an integrated component within the overall balance system rather than an independent mass block.
For this reason, each counterweight project requires evaluation of several equipment-related factors:
The total counterweight weight must correspond with the equipment design requirements and intended installation position.
Connection points, mounting holes, lifting features, and interface dimensions must match the original equipment configuration.
The casting shape and overall dimensions must fit within the designated counterweight area without affecting surrounding structures.
Different crane models and working conditions may require different counterweight configurations and production approaches.
Shengjian Fanrong manufactures counterweights according to these application requirements instead of supplying universal fixed-size blocks.
Mobile crane counterweight requirements generally fall into different supply situations.
For crane manufacturers requiring repeat production of specified counterweight components, we manufacture according to approved drawings, technical specifications, and production requirements.
For equipment suppliers and aftermarket companies, replacement counterweights can be developed based on existing samples, measurements, drawings, or available technical information.
For new equipment projects or modified applications, our engineering team reviews product requirements and supports mold development and casting preparation.
This approach allows counterweights to be produced according to actual equipment requirements rather than treated as general-purpose castings.
Before production begins, Shengjian Fanrong evaluates the technical information provided by customers to confirm manufacturing feasibility.
The review process includes:
Customer drawings, CAD files, or physical samples are reviewed to understand:
Engineering considerations include:
After technical requirements are confirmed, production preparation can include mold development, casting process arrangement, and machining planning.
This engineering review helps ensure the final casting matches the intended equipment application.
Shengjian Fanrong produces mobile crane counterweights using cast iron materials selected according to application requirements.
| Item | Capability |
|---|---|
| Material Options | Gray cast iron and ductile iron |
| Common Grades | HT150 / HT200 / HT250 and equivalent materials |
| Manufacturing Method | Sand casting |
| Single Module Weight Range | 1 ton to 15 tons |
| Surface Treatment | Shot blasting and protective coating |
| Machining Capability | Drilling, milling, boring and other processes according to drawings |
Gray cast iron is commonly selected for counterweight applications because of its high density, stable casting performance, and suitability for large structural weight components.
For applications requiring improved mechanical properties, ductile iron options can be considered according to customer requirements.
Large mobile crane counterweights require not only casting capacity but also supporting equipment for handling, finishing, and inspection.
Shengjian Fanrong operates a 60,000-square-meter manufacturing facility with 209 employees supporting customized heavy casting production.
Our production capability includes:
These facilities support both new counterweight development projects and repeat OEM production requirements.
Because mobile crane counterweights are large structural castings, production consistency is essential for OEM and replacement applications.
Our inspection process covers key production stages:
Raw materials and chemical composition are checked according to production requirements.
Casting conditions are monitored during manufacturing to maintain product consistency.
Critical dimensions, mounting areas, and required interfaces are checked according to customer specifications.
Finished surfaces are inspected after cleaning and surface treatment.
Completed products are checked before packaging and shipment.
Shengjian Fanrong operates an independent inspection center equipped with metallurgy testing equipment.
Our management systems comply with:
Each project follows a process based on the customer's technical requirements.
Customers provide available information such as:
Manufacturing requirements are reviewed and production recommendations are provided.
For new projects, mold preparation and casting development are completed according to confirmed specifications.
After casting, products undergo required finishing, inspection, packaging, and shipment preparation.
Typical production cycles:
To evaluate a counterweight project accurately, customers are recommended to provide:
Providing complete technical information allows faster engineering review and more accurate quotation.
Yes. Replacement counterweights can be developed based on customer samples, measurements, drawings, or available technical information.
Yes. We manufacture counterweights according to approved drawings, technical requirements, and production specifications.
Customers normally provide drawings, equipment information, required weight, installation details, and other technical requirements.
Yes. Machining processes including drilling, milling, and boring can be arranged according to customer drawings.
Current production capability supports counterweight modules from 1 ton to 15 tons per single module.
Shengjian Fanrong provides custom cast iron mobile crane counterweight manufacturing for OEM equipment manufacturers, machinery suppliers, and aftermarket businesses.
From technical review and mold development to casting, machining, inspection, and delivery, we help customers transform counterweight requirements into reliable heavy-duty components.
Submit your drawings, samples, or equipment information for engineering review.
Address
Beizheng Village, Beixiayin Township, Zunhua City, Hebei Province, China
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