Product Introduction
The cross hinged top beam is a load-bearing beam structure connected by a cross-shaped hinge joint, designed to achieve flexible connections and load transfer between beams.
Product Specification
| Model | Number of roots per graft (root) | Allowable bending moment of beam body/(kN.m) | Minimum load per girder/kN | Allowable bending moment of the joint part/(kN.m) | Adjust the angle (not less than) | Height/mm | Other sizes/mm | weight | |||
| Up and down | around | Articulating section | Beam body H | Length (pin hole center distance) L | The beam body length L1 | ||||||
| DJB600/470 | 1--2 | 52.5 | 470 | 30 | 7° | 3° | 138 | 90 | 600 | 420 | 18.9 |
| DJB800/420 | 1--2 | 52.5 | 420 | 30 | 7° | 3° | 138 | 90 | 800 | 620 | 22.9 |
| DJB1000/300 | 1--2 | 52.5 | 300 | 30 | 7° | 3° | 138 | 90 | 1000 | 820 | 26.93 |
| DJB1200/300 | 1--2 | 52.5 | 300 | 30 | 7° | 3° | 138 | 90 | 1200 | 1020 | 30.95 |
| Model | Long beam cross-sectional size/mm | Overall quenched and tempered hardness/HB | Carrying capacity/HB | Cross-sectional factor/cm3 | weight | |||
| (Kg·m-1) | ||||||||
| Long | wide | high | WX | WY | ||||
| DFB4500/300 | 4500 | 100/83 | 90 | 300～350 | 300～400 | 68.66 | 46.55 | 92.7 |
| DFB4600/300 | 4600 | 100/83 | 90 | 300～350 | 300～400 | 68.66 | 46.55 | 94.8 |
| DFB4700/300 | 4700 | 100/83 | 90 | 300～350 | 300～400 | 68.66 | 46.55 | 96.8 |
| DFB4800/300 | 4800 | 100/83 | 90 | 300～350 | 300～400 | 68.66 | 46.55 | 98.9 |
| DFB4900/300 | 4900 | 100/83 | 90 | 300～350 | 300～400 | 68.66 | 46.55 | 100.9 |
| DFB5000/300 | 5000 | 100/83 | 90 | 300～350 | 300～400 | 68.66 | 46.55 | 103 |
Product Customization
Material specifications: Q345 steel/Q390 steel/Q420 steel/stainless steel
Hinge types: Single-direction hinge/bi-directional hinge/multi-directional hinge/spherical hinge
Load capacity: 50-ton level/100-ton level/200-ton level/above 300 tons
Beam cross-section: I-shaped/box-shaped/H-shaped/T-shaped
Connection methods: Welded/bolt connection/pin connection/composite connection
Corrosion protection: Hot-dip galvanizing/anti-corrosion coating/cathodic protection/no corrosion protection
Dimensions: Standard sizes/custom sizes
Rotation angle: ±5°/±10°/±15°/above ±20°
Product Applications
Heavy lifting: Connects large-tonnage lifting beams, enabling multi-directional oscillation and stress relief of the load.
Mining machinery: Supports vibrating screens or crushers, absorbs alternating loads, and corrects misalignment.
Port docks: Links lifting equipment with cantilever beams to ensure dynamic balance during gripping operations.
Bridge engineering: Used in bridge girder hoisting machines to assist with the precise alignment of prefabricated beams.
Packaging & Shipping
Packaging Methods
• Standard Wooden Case Packaging: Large equipment packed in customized wooden cases with moisture-proof film and cushioning materials
• Steel Frame Reinforcement: Heavy machinery components secured with steel frame structure to prevent shifting during transit
• Anti-rust Treatment: Metal surfaces coated with anti-rust oil and wrapped with waterproof plastic film
• Separate Packaging: Oversized equipment disassembled into modular parts, individually packed and numbered
• Independent Packaging for Vulnerable Parts: Hydraulic components and electrical elements packed separately in special shock-proof boxes
• ISPM15 Fumigation Packaging: All wooden packaging materials comply with international phytosanitary standards
• Shipping Mark Identification: Clear marks printed on packaging cases indicating weight, dimensions, lifting points, etc.
Shipping Methods
• Full Container Load (FCL): 20GP/40GP/40HQ standard container shipping available
• Bulk Cargo Shipping: Oversized equipment can be arranged via bulk carriers or RoRo vessels
• Qingdao Port/Tianjin Port Departure: Shipping from nearby ports to reduce inland transportation time
• Multimodal Transportation: Sea-rail and sea-land combined transportation supported
Logistics Services
• FOB/CIF/CFR Terms: Flexible support for various international trade terms
• Customs Clearance Documents: Complete documentation including commercial invoice, packing list, certificate of origin, quality inspection certificate, etc.
• Cargo Insurance: Full transportation insurance available upon request
• Shipment Tracking: Bill of lading number and vessel schedule provided for full logistics tracking
• Port Coordination: Assistance with port lifting, trucking and other supporting services
FAQ
Q: Where is your factory located?
Me: Our factory is in Boshan District, Zibo City, Shandong Province
Q: Are you a trading company or a factory?
Me: We are a factory, warmly welcome you to visit our factory
Q: What do you need for a detailed quotation?
Me: Please tell me the product model you need, the number of products, the requirements for the surface treatment of the product, etc.
Q: How about your technical level?
Me: We focus on the production of coal mine support products for many years, with rich experience in research and development, we are the first manufacturer in the country to obtain the safety standard of five-meter single hydraulic pillar, and Shandong University of Technology jointly develop intelligent mining equipment, at the same time in 2025 we also help Dongtai Group to develop the required six-meter single hydraulic pillar.
Q: Do you have a safety certificate for your products?
Me: Our products have a national certification safety certificate.
Q: How do you guarantee the quality of your products?
Me: Each of our products needs to be inspected for quality before leaving the factory, and our products are closely related to the lives of coal miners, so we strive to make the best product quality.
Q: Can you provide customization, modification drawings and other requirements?
Me: Of course, if you need, we will modify our products according to your requirements and the actual situation of the coal mine.
Hot Tags: cross hinged top beam, China cross hinged top beam manufacturers, suppliers, factory, Hinged Top Beam, Mining Articulated Roof Beam, cross roof beam, Cross Hinged Top Beam, DFB Long Metal Beam, Hinged Top Beam DIC
