Extension of the clamping system range with hydraulic vices for the NC8 and T-Rex 125 series

Allmatic-Jakob Spannsysteme is expanding its range of products to include new hydraulic clamping systems for the NC8 and T-Rex 125 series. Areas of application are machine tools in serial production, as well as areas with a high degree of automation. The hydraulic vices make it possible to clamp workpieces quickly and automatically with a precisely defined clamping force and therefore reduce set-up times while at the same time ensuring high machining quality.

Metal machining is usually done using high-precision CNC machines which must run without interruption to the greatest extent possible. It is therefore important to keep the set-up times as short as possible. Clamping systems for holding the workpieces play an important role here. In serial production in particular, the highest possible degree of automation for recurring machining steps forms the basis for cost-effective production. Hydraulic vices are the first choice here. They allow the workpiece to be fixed in place with high force in the shortest time possible. These constantly repeating clamping processes can also always be carried out with exactly the same force.
Allmatic-Jakob Spannsysteme has expanded its portfolio to include a total of six new hydraulic vices for these tasks: These expand the NC8 (in the sizes 90, 125M, 125L, 160 and 200) and T-Rex series with their tried-and-tested mechanical vices. All hydraulic models allow for “grip clamping” as standard, i.e. the teeth on the jaw “bite” firmly into the unmachined part.
Both series are suitable for materials with a strength of up to around 1,400 N/mm², depending on accessories. Continuous adjustment of the clamping force is done through regulation of the hydraulic pressure on the hydraulic unit, rough adjustment of the clamping range is done mechanically using a hand crank. The clamping systems are equipped with a low maintenance, encapsulated high-pressure spindle, meaning that only minimal effort is required for cleaning. The spindle includes a single-action cylinder with spring reset.
It is also possible to equip clamping towers with the hydraulic spindles. Allmatic also implements individual solutions according to customer requests.

Automating machining centres with NC8 Hydro

The mechanical clamping system in the NC8 series has been successfully used in vertical CNC-controlled milling machines for many years. The new hydraulic variant is a practical alternative, particularly for the automation of 3 and 4-axis machines for serial production. The hydraulic spindle allows workpieces of all types to be clamped quickly and securely with a force of up to 40 kN (up to 60 kN for the NC8-160 and NC8-200 models). The hydraulic clamping stroke is limited to a maximum of 4.5 mm due to safety regulations. The guideway is inductively hardened and ground. The available jaw widths are 90, 125, 160 or 200 mm.
The jaw interface is compatible with the NC8/CL/TC and Titan 2 series. An individual QR code on the clamping system allows for quick access to technical information, accessories, spare parts and contact with the service team.

T-Rex 125 Hydro: Ideal for 5-axis machining centres
The T-Rex 125 Hydro mechanical clamping system has proven itself as a clamping solution which can be used horizontally on vertical, CNC-controlled milling machines. Its strength lies in automated use on 5-axis machining centres in serial production. There, it guarantees secure and rapid clamping of unmachined parts, flame and saw cuts with gripping jaws, as well as clamping of parallel pre-machined workpieces with smooth jaws. Excellent accessibility (low interference contour) which can be further increased with a bracket is a further benefit.
As in the NC8 series, the hydraulic spindle also makes it possible to use support jaws, which can be used to securely clamp unmachined parts of a wide variety of types, from flame and saw cuts through to complex castings. The clamping process is done hydraulically using a pressure switch. Stamping and clamping, as well as continuous adjustment of the clamping force using hydraulic pressure can be done in just one work step. The jaw width is 125 mm, the clamping stroke is 4.5 mm so that the vice can be loaded manually.
The clamping jaws of the mechanical variant can also be used on the T-Rex 125 Hydro.