HIGH PRESSURE HYDRAULIC PUMPS
All the pumps installed in our machinery are state of the art. Their bodies are die cast and they are designed to work in conditions of extreme pressure (315 bars).
They are hydrostatically balanced and have automatic side alignment features. They comply with all American regulations related to excavators and Mining and Public Works machinery.
They are very quiet, not reaching 60 decibels, which is an essential feature for compliance with the evermore demanding regulations for industrial facilities, such as: incineration plants, biomass treatment plants and all facilities related to the environment.
Their shafts are splined to withstand the harsh conditions under which these machines work, as well as the high starting torque that is so common.
Guarantee of 3 years at 16,000 running hours in normal conditions.
The elastic couplings used to connect the electric motor to the pump are made of STEEL+NYLON, guaranteeing maximum transmission.
OMNIDIRECTIONAL WORKING POSITION
The grapples and clamshell grabs can work in any position, even horizontally, at 90º without creating any problems for the pump suction.
The tanks are watertight and pressurised at 0.3 bars, which helps the pumps work and ensures there is no cavitation in any inclined position.
Furthermore, as an additional safety measure, the machinery is supplied with built-in inclinometers in the electrical panel. These digital or analogical inclinometers are omnidirectional and work in any position (360º), providing a double signal.
MAINTENANCE-FREE NON-LUBRICATED JOINTS
All the claw and valve joints are STEEL-STEEL, with shafts that have been hardened, tempered and ground using the very latest manganese phosphate surface treatment.
The casings are also hardened and tempered to 65 Hrc with watertight decompression grooves that completely protect the joint, preventing the lubricant leaking out and any dust or particles getting in.
No maintenance or lubrication of our joints is ever required.
VIRTUAL TOUR SERVICES
When you place an order with STEMM, our sales service will issue a document accepting the order and give you a password. You can then access our servers via your computer, tablet or smartphone and take any virtual tours you like.
MANUFACTURING PROCESS VIEWING
This service allows you to monitor your order and keep informed of the current status of the manufacture and supply of each of its components.
The photos, diagrams and videos are updated daily. This service is available 24 hours a day until 15 days after the machine has been shipped.
PROVISIONAL ACCEPTANCE, TESTS AND TRIAL RUNS
Once the equipment has been manufactured, it is tested uninterruptedly for 24 hours (500 cycles) before shipment.
Testing and exhaustive examination of all componentes are carried out by means of a testing bench equipped with a PLC, in order to simulate, without load, real operations.
Once the PROVISIONAL ACCEPTANCE testing has been performed, you are given the opportunity to watch a 4-5 minute video showing the parameters and results obtained, with the opening and closure times, consumption, pressure, and temperatures obtained during the tests.
You can also see the detectors, correct closure control, the condition of the lips, teeth, joints, synchronism, opening and closure mechanisms, as well as an overall view from several different angles. Thanks to this service, there will be no need for you to travel to observe routine tests on standard mass-produced machines.
EASY-TO-DISMANTLE BLOCKS
All the valves and components are composed of LOGIC COMPONENTS IN CARTRIDGES inserted into the block.
The hydraulic circuits in our machines are fully integrated into a MANIFOLD BLOCK, which is the heart of the machine. They are standard, interchangeable pieces of equipment for all machines.
They are completely impervious to any impurities that may exist in the circuit, which affords the system a very long life (with no filter change necessary).
These MANIFOLD BLOCKS are incorporated into a DECOMPRESSION SYSTEM that prevents the much-feared fluid hammer that is so damaging to hydraulic facilities and the structure itself. There is also no possibility of leaks. This block dismantling system makes maintenance work much easier.
All the blocks are kept in stock and are tested in 8-hour processes over 10 days with 40 cycles per hour.
COMPLETE KIT 2021-3C FOR AUTOMATIC STEMM PROCESSES
The system allows them to be fully programmed using the logic controller on the gantry crane or remotely operated using the remote control service GRAB CONNECT which is always included with STEMM equipment installations.
For applications where a grapple or clamshell grab will be working in a completely automated process. STEMM developed KIT 2021-3C comprising electrical, electronic and hydraulic components, which is essential for an optimum and safe configuration of any automated process working non-stop at full capacity.
KIT 2021-3C comprises a series of components that emit, reflect or register peripheral, informative, determining or selective signals, indicating the level of performance of the main and vital components in the machine.
This KIT should be synchronised and fully integrated with the crane PLC that should always control the whole system and will act in accordance to its programming and based on the information it receives from the grapple or grab.
Please do not hesitate to contact us if you would like more information about this device.