Crab Type Scaffolding

Crab Type Scaffolding: Heavy-Duty Modular Support System for High-Load Construction

Shandong Xingrui Building Materials Co., Ltd. manufactures Crab Type Scaffolding engineered with Q235 premium steel and 60.3mm outer diameter uprights. Our system adopts a chrysanthemum disc design with eight holes, which can bear force in many directions and has a step distance of 1.5m. The crab claw shaped nodes are distinctive and can take load between 40kN and 75kN per standard depending on setup. We have more than 40,000 square meters of standardised workshops, 12 welding robots and 6 automatic welding lines to ensure the consistent quality of each component. We are certified to ISO 9001, ISO 14001 and CE as evidence of our production expertise.

What Makes This System Different

The distinctive attribute is its self-locking mechanism. More vertical pressure automatically tightens up the crab-joint connection to enhance the shear strength at crucial nodes. This removes structural irregularities that are often seen with manual tube and clamp assemblies.

Pre-engineered connecting points for your construction projects that save assembly time by 40% against typical scaffolding. The disc features eight holes for placing ledgers in any direction, offering unprecedented flexibility when working around existing structures or equipment in complex geometries.

Hot-dip galvanising with a zinc coating of 60 to 80 microns protects the steel parts in a corrosive environment. This treatment increases service life to more than 15 years even in applications in coastal and chemical plants where exposure to moisture and salt accelerates metal deterioration.

Technical Specifications of Crab Type Scaffolding

Where You Can Deploy This System

Bridge and Viaduct Construction

When your project requires supporting reinforced concrete box girders across extended spans, this scaffolding maintains verticality under extreme pressure. The rigid node connections prevent lateral movement during concrete pouring, protecting worker safety and structural integrity.

Large-Span Industrial Facilities

Power plants and petrochemical refineries demand shoring systems that adapt to complex piping layouts. The modular design allows you to erect support structures with minimal ground obstruction while maintaining full load capacity at heights exceeding 20 meters.

Basement Heavy-Load Support

Deep excavation projects require temporary support capable of withstanding soil pressure and equipment loads simultaneously. The multi-directional force distribution prevents localized stress concentrations that cause premature failure in lighter systems.

Ultra-High Formwork Applications

Residential towers and commercial complexes with floor-to-ceiling heights above standard dimensions benefit from the 1.5m step distance. You can achieve your required elevation without compromising stability or increasing material costs.

Performance Advantages

The 60-series system of Crab Type Scaffolding​ outperforms 48mm diameter alternatives in axial load tests by 35%. Larger diameter uprights reduce deflection under sustained loads, maintaining alignment throughout concrete curing cycles.

Connection reliability improves because the wedge-locking mechanism requires no torque verification. Your site crews achieve consistent joint quality regardless of individual skill levels, reducing inspection time and rework costs.

Wind resistance exceeds lightweight aluminum systems due to the high-density steel construction and lower vibration frequency. In coastal construction zones where wind loads reach critical design thresholds, this stability prevents catastrophic collapse scenarios.

Assembly and Compatibility

Standard U-head jacks, base plates, and steel planks integrate seamlessly when outer diameters match ISO specifications. You can source accessories from multiple suppliers without compatibility concerns, protecting project timelines from supply chain disruptions.

The self-aligning disc design allows one worker to position and lock horizontal ledgers in under 30 seconds per connection. This labor efficiency translates to 60% faster erection times compared to systems requiring manual bolt tightening at every node.

Disassembly proceeds in reverse order without specialized tools. Components separate cleanly after months under load, maintaining dimensional accuracy for reuse across multiple projects. This reusability delivers lower cost-per-use metrics over the system's operational lifetime.

Packaging and Delivery

We bundle components in steel pallets designed for container loading efficiency. Protective wrapping prevents surface damage during international transit. Our location in Rizhao provides direct seaport access, reducing inland transportation costs and lead times to major shipping routes.

FAQ

Q：How does this system handle uneven ground conditions?

A：Adjustable base jacks compensate for grade variations up to 300mm. The disc rotation allows ledger positioning at any angle, accommodating sloped sites without custom fabrication.

Q：What maintenance schedule do you recommend?

A：Inspect galvanization integrity every 6 months. Replace components showing zinc loss exceeding 20% of coating thickness. Clean mud and concrete residue after each use to prevent corrosion acceleration.

Q：Can it support dynamic loads from concrete pumping equipment?

A：Yes, when engineered with appropriate bracing intervals. The system's rigidity dampens vibration from pumping operations, preventing resonance that fatigues connection points in flexible scaffolding types.

Q：Is training required for installation crews?

A：Basic orientation takes 4 hours. The intuitive locking mechanism reduces the learning curve compared to systems with multiple fastener types. Safety protocols focus on proper ledger engagement rather than torque specifications.

Q：What documentation do you provide for structural calculations?

A：Each shipment includes load charts, material certificates, and compliance reports. Our engineering team offers free calculation verification for your specific configuration and loading conditions.

Contact Us

Partner with a manufacturer combining 17 years of scaffolding expertise in Crab Type Scaffolding​ with modern production capacity. Request technical specifications or custom quotations at sdxingruiqp@126.com.