YDGZ-40 Heavy-Duty Hydraulic Rail Clamp

Essa é uma pergunta excelente e crucial. Tem razão quando diz que a força de travagem horizontal efectiva é o que, em última análise, protege o seu equipamento.

Os 400KN são a força vertical nominal que a nossa braçadeira YDGZ-40 aplica à cabeça do carril. Os nossos blocos de fricção em aço de elevada resistência ao desgaste foram concebidos para atingir um coeficiente de fricção estável e conservador (μ) de 0,25 em condições típicas de carris secos.

Therefore, the nominal horizontal braking force per clamp can be calculated as:
Braking Force = Clamping Force × μ = 400 KN × 0.25 = 100 KN

Este valor de 100 KN é o valor que deve utilizar nos seus cálculos de carga de vento e de segurança. Recomendamos a utilização deste valor conservador para máxima segurança. Para aplicações que envolvam carris oleosos ou húmidos, ou para uma análise mais detalhada, a nossa equipa de engenharia está pronta a ajudá-lo a calcular o número exato de abraçadeiras necessárias para o seu ambiente operacional específico.

Sem dúvida. Determinar a quantidade correta é fundamental, e podemos certamente orientá-lo. O cálculo principal envolve assegurar que a força de travagem total de todos os grampos excede a força máxima potencial do vento na grua.

The basic formula is:
Number of Clamps = (Total Wind Force × Safety Factor) / Braking Force per Clamp

Calculate Total Wind Force (Fw): This depends on your crane’s total surface area exposed to the wind, its shape, and the maximum design wind speed at your location according to local standards (e.g., EN 13001, ASCE 7).
Select a Safety Factor (SF): We typically recommend a safety factor of at least 1.2 to 1.5, depending on the criticality and local regulations.
Use Braking Force per Clamp: As established, this is 100 KN for the YDGZ-40.
Example: If your crane has a calculated max wind force of 750 KN and you use a safety factor of 1.2, you would need: (750 KN × 1.2) / 100 KN = 9 clamps. In this case, you would likely install 10 clamps for symmetry and redundancy.

Aconselhamo-lo vivamente a fornecer-nos as especificações da sua grua e os requisitos locais em termos de velocidade do vento. A nossa equipa técnica pode efetuar um cálculo detalhado para garantir uma configuração totalmente compatível e segura.

Este é um ponto vital para garantir uma instalação segura e duradoura. Devido ao peso significativo (1110 kg) e às forças poderosas envolvidas, a estrutura de montagem é crítica.

Mounting Surface: The clamp must be mounted on a solid, flat, and machined steel surface on the crane’s end carriage or bogie. We provide a detailed mounting footprint drawing with all required bolt hole dimensions and locations.
Structural Integrity: The crane structure at the mounting point must be sufficiently reinforced to handle both the static weight of the clamp and, more importantly, the dynamic reaction forces during braking. The structure must be able to withstand the full 400KN clamping force without deflection.
Alignment: The clamp must be installed perfectly perpendicular to the rail to ensure the friction blocks make full contact. We provide clear alignment procedures in our installation manual.
Before you purchase, we can provide you with the complete installation drawings. We recommend having your structural engineer review these drawings to verify the compatibility with your crane’s design and plan for any necessary reinforcement plates or brackets. Proper preparation ensures a smooth installation and the full performance of the brake.

Concebemos o YDGZ-40 para uma durabilidade máxima e um tempo de inatividade mínimo.

Service Life: The high-wear steel friction blocks have a significantly longer lifespan than traditional composite materials. In a typical parking brake application with a limited number of cycles, their mechanical life can extend for many years. The primary factor for replacement is wear. Each block has a clear wear indicator, and replacement is only needed when the thickness reaches the minimum specified limit.
Ease of Replacement: The friction blocks are designed as modular components. Replacement is a straightforward process that can be performed in-situ without removing the entire clamp from the crane. It involves releasing the brake (manually or hydraulically), unbolting the worn block carrier, and installing the new one. The entire process for one clamp can typically be completed within a couple of hours by a qualified technician.
Spare Parts: Yes, we maintain a full inventory of all critical spare parts, including friction block assemblies, seal kits, and limit switches. We guarantee their availability to ensure you can keep your equipment running with minimal delay.