Your benefit in Harbour Cranes RINGSPANN® Registered Trademark of RINGSPANN GmbH, Bad Homburg

Company Company profile RINGSPANN GmbH, Germany Headquarters and Plant Freewheels Innovative achievements have made RINGSPANN a leading manufacturer for Power Transmission Components, Clamping Fixtures and Remote Control Systems. Many well-known companies from the machine building, the material handling, the energy as well as the aerospace industries successfully work with RINGSPANN. With more than 80 years’ experience in development, design and manufacturing, we are experts in intelligent technical solutions. From our headquarters in Bad Homburg, Germany, more than 500 employees in 21 international...

As a leading manufacturer of braking systems, RINGSPANN offers brakes, couplings, brake discs and brake control systems for heavy industry. Our brake portfolio offers a wide range of brakes and peripheral equipment, specially designed for the high demands of harbour crane applications. • Electrohydraulic thruster brakes and thrusters • Emergency brake calipers with hydraulic power units • Couplings with brake discs • Brake Control Systems • Condition Monitoring Solutions • Storm Brakes • Flank Change Elimination • Adaptive braking on main hoist • Adaptive braking on boom hoist • Detection of...

Electrohydraulic Thruster Brakes I2) Pin and Bush and Jaw Couplings with Brake Disc 3 Emergency Brake Calipers W Hydraulic Power Units W Brake Control System and Condition monitoring

Pin and Bush and Jaw Couplings with Brake Disc • Brake disc diameter up to 1 000 mm • Maximum transmittable torques of up to 337 kNm • Fail-safe torque transmission • Compensation of axial, radial and angular misalignments Complies with ATEX 2014/34/EU • Robust self centering unit, that is easy to adjust • Encapsulated automatic wear compensation unit • Maintains parallel pad air gap when brake is released • Very high braking force in a lightweight design • Brake peak heights in accordance with the market standard: 160 mm, 230 mm, 280 mm and 370 mm

• For critical applications like main hoists and trolleys • Pressure generation via gear pump • Ultra fast setting times (< 80 ms) • 100% analogue layout - no circuit board required • Very low power consumption due to unpressurised circulation, while brake is open • Easy maintenance - wearing parts, such as solenoid coils, can be replaced while the thruster is installed in the brake Electrohydraulic Thrusters with impeller pump • Proven design with an impeller pump for pressure generation • Simple and robust - easy to maintain design

Emergency Brake Calipers and Hydraulic Power Units for Hoists Hydraulic Emergency Brake Calipers • Available as a fixed caliper version or as a floating caliper version to reduce weight and save space • Hydraulic chamber mounted above the spring assembly allows for easy and safe brake seal replacement • Optionally available as a ready-to-install solution with one or two brakes mounted on a pedestal, including hydraulic power unit, terminal box and hydraulic hoses or pipework Hydraulic Power Units • Modular setup allows a wide range of functions in one device • Large range of options such as controlled...

Rail Clamps and Rail Brakes • Very high braking force with compact dimensions • Easy and safe brake seal replacement with top mounted hydraulic chamber • Suitable for all common rail profiles • Inductive or mechanical sensors for "Brake open" and "Brake pad wear" • Corrosion resistant coating up to C5-M (CX) • Maximum holding force for rail clamp: 500 kN • Maximum holding force for rail brake: 300 kN • Rail clamp lateral float up to +/- 30 mm • Rail clamp vertical float up to +/- 5 mm • Built-in hydraulic power unit with control box • Throttle valve for adjustment of brake setting time • Hydraulic...

Service brakes for Gantry Drives Electromagnetic Brake DH 034 FEM • Simple and robust brake design • Stainless steel levers for highest corrosion protection • Suitable for dynamic and static applications • Easy to install and maintain Electrohydraulic Disc Brakes and Drum Brakes • Drum brakes available in metric design according to DIN standard 15435 or with imperial dimensions according to AISE standard • Robust and simple design • Self-lubricating bushings • Stainless steel pins and spindles • Automatic wear compensation • Organic or sintered linings for disc brakes • Organic linings for drum...

Solutions for extending the service life of hoist gearboxes Braking systems for port cranes Over the years, the size of container vessels have constantly been growing. This development has led to a growth of container cranes as well. Besides the increase in total height and boom outreach, the hoisting speed and maximum load under the spreader has grown, too. The result is an increase of peak torques in the bearings and the crane’s steel structure, when doing a category 0-emergency stop. RINGSPANN has developed a complete range of braking solutions, that all follow one goal: To minimize the impact...

Solution: Flank Change Elimination A common issue, that occurs during a category 0-emergency stop on a main hoist drive is the flank change in the gearbox. To avoid this unwanted effect, it is necessary to apply the brakes on the drive side, which are opposite to the driving force: • For a lifting sequence, the driving force is the motor (motor power is used, to overcome gravity of the weight of spreader or container). • For a lowering sequence, the driving force is the load itself. The motor is only used to control the movement and to prevent a free fall, but always follows the movement of the...

Solution: Adaptive braking on main hoist When selecting a brake for a hoist, the maximum lifting speed in conjunction with the maximum lifting load is usually taken as a basis. Under operating conditions where the maximum lifting load and the maximum lifting speed both apply, the braking force of all brakes provides sufficient counterforce to stop the hoist in an emergency. However, maximum lifting speed and maximum lifting load are not everyday scenarios in typical crane operation. For example, if a crane is operated at 50% of its maximum speed and 50% of its maximum payload, the braking force...