Without processing plants for crushed stone and gravel, many large construction sites cannot operate on schedule. Jaw or impact crusher plants are facilities that break rock into crushed stone or gravel. The crushing ratio depends on the subsequent processing requirements. The output for large plants is several thousand tons of rock per hour. Machine downtime […]
Safety
R+W heavy duty safety couplings for tunneling machines
Well developed road and rail networks are an essential requirement for a sound and efficient infrastructure in any country. Therefore, the tunneling machine field within the heavy machine construction industry will have plenty of contracts in the coming years. R+W ST safety couplings have been integrated in the latest generation of tunneling machines. On […]
Heavy duty safety couplings from R+W
R+W has recently introduced two new smaller STN series safety couplings with conical clamping hubs, to bring heavy duty industrial style overload protection into midsize applications. The two new sizes, 2 and 5, cover disengagement torques ranging from 200 to 5,000 Nm, and shaft diameters from 45 to 80mm (1.750 to 3.125-in.). Taking advantage of […]
R+W safety couplings for wastewater applications
R+W has developed a standard model of corrosion proof ball detent safety coupling for clarifier drives in water treatment plants. The industry requires a well sealed, high-grade stainless steel mechanism to stand up to harsh conditions, resulting in the specific design criteria. The function of the ball detent torque limiter is to disengage the driveline […]
R+W releases the STB safety coupling with bellows coupling connection
R+W brings heavy duty torque overload protection to dynamic precision applications with the new STB series safety coupling. Featuring a ball-detent safety element system, which disconnects drivelines within milliseconds of a torque overload event, this version offers precision transfer of motion and torque by using a symmetrically formed, torsionally rigid stainless steel bellows for the […]
Spindle safety system
Despite current CNC machine tool crash protection strategies which include both proactive avoidance through CAD/CAM programming and reactive damage reduction methods that include electronic sensors and mechanical overload clutches, machine tool crashes are still commonplace. In these machine tool crashes, tool collisions with high feed rates cause high forces on motor spindles. Depending on the […]
R+W Releases STE safety coupling with elastomer connection
R+W has recently narrowed the gap between its classic precision and industrial drive safety couplings with the new STE series. Featuring the well proven technology of the ball-detent safety element system, which disconnects drivelines within milliseconds of a torque overload event, this version is more cost effective and available in smaller sizes than the standard […]
How does a ball detent torque limiter work?
Coupling Tips.com asked KTR Engineering Services Manager, Chris Scholz about the basics of ball detent torque limiters. “In a ball detent design, there is some type of spring mechanism, or a spring disk, a curved spring disk, or a spring with a flat plate. A precision hole is also machined in that disk, or plate, […]
New video on precision safety couplings
R+W Coupling Technology has released an educational video on its precision safety couplings. Topics covered in this video include the basic design, function, and handling of the ball-detent torque limiters. It also features an instructional section which demonstrates how to properly adjust the disengagement torque value and re-engage fully disengaging versions. With this video, R+W […]
Torque limiting couplings at Bauma
Voith will be presenting its components for mining and mineral processing at the upcoming construction trade fair bauma 2016 in Munich this year. Voith will exhibit its new Coupling Monitoring System CMS 310, the SlipSet coupling, the Voith TurboBelt Hese Pulley, a TVVS Fluid Coupling and a highly flexible coupling type H in hall C2, […]
