Industry Application

Electronics Assembly & PCB
Direct Drive Applications

Electronics Assembly & PCB — Direct Drive Applications

Electronics manufacturing (productronics) pursues the highest pick-and-place speed and positioning accuracy. Linear motors drive horizontal pick-and-place axes, Z-axis short-stroke actuators serve as fast press-down axes, and RDDS rotary direct-drive subsystems serve as Pick & Place positioning tables — boosting the throughput of surface-mount, die/wire bonding and PCB handling with zero-backlash, maintenance-free direct drive.

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Requirements

Drive Challenges in Electronics ManufacturingDrive challenges in electronics manufacturing

Pick-and-place, mounting and bonding impose strict requirements on speed, accuracy, integration and reliability.

High-Speed Pick & Place CyclesHigh-Speed Pick & Place Cycles

Z-axis acceleration up to 1,000 m/s²

Tens of thousands of pick-and-place operations per hour determine line throughput. Linear motors offer high-dynamic positioning with low moving mass, and Z-axis actuators have high acceleration, dramatically shortening pick-and-place cycle time.

Precise Positioning, No OvershootPrecise Positioning, No Overshoot

Zero backlash · direct drive

Fine-pitch mounting and bonding require micron-level repeat positioning. Direct drive eliminates drive-train backlash and hysteresis, and ironless motors have no cogging force — positioning is precise with no overshoot.

Ready-to-Use Rotary IndexingReady-to-Use Rotary Indexing

RDDS: pick & place positioning tables

Indexing and rotary pick-and-place require a ready-to-use module integrating motor, bearing and measuring system. The official RDDS rotary direct-drive subsystem applications include pick & place positioning tables, serving the electronics manufacturing (productronics) industry and sparing customers from integrating it themselves.

Maintenance-Free & ReliableMaintenance-Free & Reliable

Over one billion cycles (LDDS-078)

Production lines run continuously and cannot afford downtime. Direct drive is contactless, wear-free and maintenance-free; the LDDS-078 voice-coil Z-axis has reliability beyond one billion cycles, ensuring long-term stable operation.

Solutions

Direct Drive Solutions for Electronics AssemblyDirect drive solutions for electronics assembly

Linear motors as horizontal axes, Z-axis subsystems as press-down axes, and RDDS subsystems as rotary positioning tables form a complete pick-and-place module.

LDDS-078 · LDDS-032

Z-Axis Short Stroke ActuatorsZ-Axis Short Stroke Actuators

Schaeffler offers Z-axis modules for fast Pick & Place, optical inspection and test machines. The LDDS-078 voice-coil Z-axis is compact, low-power and reliable to one billion cycles; the LDDS-032 slotted linear-motor Z-axis offers high force density with no moving cables, ideal for Pick & Place and fast cycling.

  • LDDS-078 stroke 5 mm, peak force 48 N, moving mass 77 g
  • LDDS-032 peak force 640 N, maximum payload 3.5 kg
  • Integrated measuring system, maintenance-free
  • Applications: Pick & Place, test and sorting machines
Product Tech Docs
RDDS1 · RDDS2

RDDS Rotary Direct Drive SystemsRotary Direct Drive Systems

Ready-to-use rotary modules integrating torque motor, precision bearing, measuring system and cooling. The official applications explicitly list pick & place positioning tables and testing tables, serving the automation, metrology and electronics manufacturing (productronics) industries, with zero backlash, high stiffness, smooth running and easy assembly.

  • RDDS1 Ø130 – 230 mm, RDDS2 Ø240 – 565 mm
  • Integrated motor + bearing + measuring + cooling, ready to use
  • Zero backlash, low-wear maintenance-free, compact construction
  • Official applications: pick & place positioning tables, testing tables
Product Tech Docs
UPLplus · L1

Linear Motors (Horizontal Pick-and-Place Axes)Linear Motors

UPLplus ironless linear motors offer +42% force-to-mass ratio and low moving mass, ideal for high-dynamic pick-and-place; L1 iron-core linear motors are explicitly listed for production-line placement systems. Both are zero-backlash and maintenance-free, driving X/Y horizontal pick-and-place axes.

  • UPLplus peak force 100 – 1,300 N, speed up to 30.4 m/s
  • L1 peak force 169 – 5,171 N, precise positioning with no overshoot
  • No cogging (UPLplus), smooth motion
Product Tech Docs
Application Cases

Typical Applications in Electronics ManufacturingTypical applications in electronics manufacturing

Pick & Place positioning tables and testing tables correspond to the official RDDS productronics applications; surface-mount and bonding are direct-drive motion needs of comparable industry processes.

Surface mount and pick-and-place
SMT & Pick & Place
SMT Mounting & Fine-Pitch Pick-and-Place
SMT placement involves tens of thousands of pick-and-place operations per hour, and fine-pitch components require micron-level mounting accuracy; PCB manufacturing and wire/die bonding likewise need fast, precise axis motion. Linear motors drive the X/Y pick-and-place axes (no cogging, low moving mass, fast settling), and LDDS-032 (peak force 640 N) / LDDS-078 Z-axes provide the vertical placement press-down, forming a high-dynamic, maintenance-free, overshoot-free pick-and-place module.
Linear Motors Z-Axis Subsystem
Pick and place positioning table
Positioning Tables
Pick & Place Positioning Tables
The official RDDS rotary direct-drive subsystem applications explicitly list "positioning tables for pick and place tasks" and "pick and place machines", serving electronics manufacturing (productronics). The integrated ready-to-use module spares customers from integrating the motor, bearing and measuring system themselves.
RDDS Ready-to-Use
High-speed sorter rotary indexing
High-Speed Sorters
High-Speed Sorters (IC Test Handling)
High-speed sorters (test handlers) use a rotary turret / index plate to pick-and-place, test-contact and sort IC components at high cadence. The turret must index extremely fast, with zero backlash and very short settling time, to raise units per hour (UPH) while maintaining precise positioning at the test contacts and discharge ports. RDDS rotary direct-drive subsystems deliver zero-backlash, high-dynamic, smooth-running rotary indexing with high repeatability; the RDDS-20-B integrates motor, bearing and measuring system into a single ready-to-use module, requiring minimal installation to serve as the rotary axis of a high-speed sorter turret.
RDDS RDDS-20-B Ready-to-Use
Related Pages

Explore Related ApplicationsExplore related applications

Semiconductor & Wafer Processing Automation & Robotics Optical Inspection & Metrology

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