Machine Design Products of the Week (12/15-12/22)

Latch-type toggle clamps in the GN 852.3 series are available in steel and stainless-steel constructions with a heavy-duty safety hook for reliability in applications requiring high holding-strengths. Circular movement of the handle is transformed into linear action with a latch. In the clamped position, the U-bolt latch is parallel to the plane of the operating handle, and a safety hook positively locks onto the body.

JW Winco Inc., (800) 877-8351, www.jwwinco.com 

Micro Clutches Offer Simple, Versatile Design

CYT micro clutches can be easily mounted to a driven shaft to accurately connect and release power to a load. Designed for compact precision applications, custom variants can be realized by pairing a sprocket, timing pulley, V-belt pulley, or shaft to the armature. Micro clutches are offered as dry metal types and a ball-bearing types, with three armature configurations available for pulleys, gears, and a combination of both on a shaft. They operate at temperatures ranging from -10°C to +40°C, and have a speed range up to 3600 RPM. Bore sizes range from 6 to 10 mm, and clutch torques range from 0.3 to 0.74 ft. lbs. (0.4 Nm – 1.0 Nm).

Miki Pulley, (800) 533-1731, www.mikipulley-us.com 

The NRH305DR no-contact rotary position sensor targets vehicles and control systems. It features two independent power supplies and output channels for electrical redundancy, and operates from a 5 Vdc regulated supply. With an 8-mm sensor-body profile and small footprint, it is fully encapsulated and IP68/IP69K rated to withstand water, dust, shock, vibration and extreme temperatures.

Curtiss-Wright, www.curtisswright.com 

These industry-specific Ethernet switches comply with IEC 61850 standards to communicate easily with power and railway networks in electrical substations and the grid. The IEC 61850 international standard follows an object-oriented protocol that clearly identifies components like process objects, protection, and control functionality, allowing switches to gather details about the power grid system. IEC 61850 Part 3 also defines network and hardware requirements suitable for substation automation such as electromagnetic immunity (EMI), surge protection, vibration, shock resistance, and temperature range. The Ethernet switches operate at a temperature range of -40 to 85 °C, and handle reliable, long distance transmissions through Fiber Optics connectivity. They enable real-time packet switching for GOOSE (Generic-Object-Oriented- Substation-Event), and have a level of redundancy that minimizes packet loss with RSTP (Rapid Spanning-Tree Protocol) and ERPS (Ethernet Ring Protection Switch) rings. They comply with MIL-STD-810F standard to withstand a wide tolerance for vibrations and shocks, and deliver electromagnetic immunity.

Mencom, www.mencom.com 

EN50155 Railway Networking

The DTA04 motor thermistor relay protects electric motors from overheating. It features a compact, 22.5-mm wide DIN-rail mount housing with a universal input voltage from 24 to 240V AC/DC for flexible installation in a variety of control panels. It also has multiple NEMA B300 relay outputs. An operational mode can be configured as Auto or Manual reset. It conforms to global standards such as UL 508, CSA C22.2, and EN 60255-6. It can be used in pumping stations, water treatment, conveyors, material handling, HVAC, chillers, and other applications. It has a reaction time of less than 500 ms.

Carlo Gavazzi, www.GavazziOnline.com 

The CAA series of incremental encoders delivers speed and position feedback for NEMA 17, 23, and 24 frame stepper motors. They leverage capacitive reactance to generate digital feedback signals, and are resistant to environmental contaminants such as /dust and oil. They have a modular design and a thin profile. They can also be used for stall detection and stall prevention, which dynamically adjusts motor speed and torque to match the changing demands of the load.

Applied Motion Products Inc., www.applied-motion.com