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Quality Control of loader cranes

At Zory, we are committed to delivering truck mounted cranes that meet the highest standards of quality, reliability, and durability. Our comprehensive quality control system encompasses every stage of the product lifecycle, from initial design to after-sales service, ensuring that every crane we produce exceeds customer expectations. We adhere to rigorous international standards, including GB-T26473-2021, GB/T19001-2016/ISO9001:2015, and CE certification (Machinery Directive 2006/42/EC).

Design Phase

Advanced Modeling and Simulation

We utilize advanced 3D parametric modeling with software like Creo to simulate extreme operating conditions (e.g., emergency braking, dynamic loads). This allows us to identify and address potential structural weaknesses early in the design process.

System-Level Reliability Engineering

We employ Failure Mode and Effects Analysis (FMEA) to proactively assess and mitigate potential failure risks, such as boom fractures or hydraulic leaks. Our designs ensure a safety factor of ≥1.5 (static) and ≥1.25 (dynamic) under maximum load conditions.

Standards Compliance

Our lorry mounted cranes are designed and manufactured in strict compliance with relevant international standards.

Material and Component Selection

Structural Member

Key structural components are fabricated from high-strength steel plates with a yield strength of ≥690 MPa (and up to 960 MPa for larger cranes), ensuring superior load-bearing capacity and durability.

Hinge Pin

Critical pivot points utilize 40Cr or 42CrMo quenched and tempered steel for enhanced strength, load capacity, and extended service life.

Same supplier as XCMG

For top performance, our cranes use hydraulic pumps & valves etc. from the same leading suppliers as XCMG. This ensures quality & durability on par with XCMG.

Premium Hydraulic Components

We use Parker-standard high-pressure hoses and 24° cone fittings to ensure reliable and leak-free hydraulic system performance.

Manufacturing Process Control

Precision Laser Cutting

We utilize laser cutting for sheet metal fabrication to achieve precise dimensions and clean edges. This facilitates proper fit-up, enhances welding and painting quality, and reduces the need for adjustments.

Precision Welding

We employ MAG welding (Metal Active Gas welding) for all structural welds, followed by 100% weld inspection to ensure structural integrity.

Surface Treatment

Post-weld shot blasting removes rust and scale, eliminates welding stresses, and enhances paint adhesion for superior corrosion protection.
Need Any Help?

Should you require any additional information, such as detailed product specifications or our complete catalog, we are happy to assist you.

Final Inspection and Testing

Before leaving our factory, every truck mounted crane undergoes rigorous testing, including:

FORKLIFT CRANES BROCHURE

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TIMBER CRANES BROCHURE

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KNUCKLE BOOM CRANES BROCHURE

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TRUCK MOUNTED CRANES BROCHURE

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