SCHUNK SLD Linear Direct Axis

Linear direct axis SLD

In high-speed assembly, the focus is on precise and fast execution of repetitive
processes. SCHUNK offers a compact and integrated solution with the SLD linear direct
axis, tailored specifically to your application. This dynamic all-rounder axis meets
the highest standards of efficiency and flexibility.

The SLD series was developed as a highly dynamic, multifunctional drive that, due to its modular design, meets the
demands for high load capacity and longer service life. 

The drives can be used in a variety of applications, such as
high-speed workpiece clamping, measurement and control
technology, electronics, e-mobility, or the life science sector.

Benefits

➕ Duration and reliability - almost no components subject to wear
➕ No mechanical play between drive components for flexible response behavior and high positioning accuracy
➕ High load ratings for high bearing load capacity and service life
➕ Integrated motor and measuring system in the axis - minimizes interfering contours and space requirements
➕ Can be fitted with absolute stroke measuring system - Less programming effort and time saving when commissioning and during operation
➕ High dynamics for shorter cycle times -  assuring high productivity
➕ Optional pneumatic safety holding brake as rod lock - for high requirements on machines and personal safety
➕ Upon request, certified safety devices according to SIL2/PLd for applications with high requirements in the area of machine safety

Product Features

Sectional diagram

The electric drive consists of a primary part (motor coil) and a secondary part (permanent magnets). The phase and the amplitude of the applied electrical current are regulated in the controller. Depending on the application, this sets the profile fitted with magnets in motion or moves the slides of the axis.

1.  Aluminum extruded profile
Flat and weight-optimized

2.  Pre-loaded profiled rail guide with recirculating ball-bearing guides
for optimal guidance properties and speeds

3.  Integrated secondary parts
with high power magnets

4.  Compact primary part slide
with mounting surfaces, guidance adjusted without play and integrated measuring system

5.  End plates
with integrated shock absorber elements

6.  Motor plug
Position right/left can be selected

7.  Measuring system plug
Position right/left can be selected

Application example

Highly flexible handling unit for fast and precise placement of hairpins in a stator for the automated production of electric motors.

1.  Linear direct axis SLD

2.  Universal linear module LDN

3.  2-finger parallel gripper PGN-plus-P

Variants & Other Tools

For a drill down of more options, please refer to the selector tool found at SLD Linear Direct Axes Model Configurator.

Operation & Options

Sizing assistant & configuration for customized linear axes

The SCHUNK sizing assistants make it easy to reliably select the right specific products from the portfolio for each application.

With our configurable standard products, we reduce complexity in system planning and offer a large number of individual adaptation options. In just a few clicks, linear modules can be adapted to individual requirements in less than 10 minutes, opening up an even wider range of applications.

In addition to configurable standard products, SCHUNK Engineering offers customized solutions – feel free to contact us!

Design of the linear direct axis

The linear direct axis SLD consists of a motor slide with an integrated primary component and a measuring system.

The secondary component consists of permanent magnets and is integrated into the aluminum extruded profile of the linear axis.

1.  Aluminum extruded profile

2.  Permanent magnets

3.  Motor slide

 

Modular transducer system

The linear module are available with different path measuring systems.

The incremental stroke measuring system has a 1Vss interface. The absolute path measuring systems are optionally available with the HIPERFACE®, HIPERFACE DSL® or DRIVE-CLiQ interfaces.

Other interfaces are available on request.

1.  Measuring system reading head, fixed on the motor slide

2.  Measuring tape of the measuring system, fixed on the aluminum extruded profile

Pneumatic holding brake

The linear module is optionally available with a safety holding brake. This holding brake is pneumatically actuated.

Its function is activated in a non-ventilated state. The holding brake is used to maintain the position of the linear axis in a current-less condition.

The holding brake is also suitable for applications in the field of machine safety. Please feel free to contact us.

Drag chain

Matching cable tracks are available as accessories for the linear axes. (Similar to illustration). These are adapted to the respective effective stroke, supplied incl. mounting material, and if necessary, pre-assembled.

Covering tape

The linear module is optionally equipped with a covering tape. This prevents dirt from entering the inside of the axis and at the same time prevents grease from escaping when the axis is mounted horizontally or vertically.

UL certification

The motor of the linear direct axis is UL-certified as standard. The UL safety mark allows for rapid market access to North America and other countries.

UL certifications are awarded on a product-by-product basis and are periodically reviewed by UL.

Not only the final product is tested, but also the manufacturing of the product.

Heavy-duty version/high-speed variant

The SLD axis is available in a heavy-duty version for applications with increased requirements in terms of basic load ratings, rigidity and lubrication intervals.

From size SLD 22 and up, the profiled rail is replaced by a larger version with higher basic load ratings, and both the extruded profile and the slides are adapted accordingly.

Based on the heavy-duty version, a high-speed variant with speeds of up to 10 m/s is available.