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Motion Control Solutions for 3C Non-Standard Automation

High-Frequency Precision Flexible Positioning for Custom 3C Electronics Manufacturing Processes

3C Non‑Standard Automation

Industry technical challenges

Significant positioning deviation in high-frequency reciprocating motion, insufficient repeat accuracy

Non-standard equipment for sorting, lamination, dispensing, and screw driving requires high-frequency point-to-point positioning. Conventional open-loop drives tend to accumulate step loss and positional drift over extended operation, resulting in uneven assembly gaps, deviated dispensing paths, substandard fastening accuracy, and poor batch-to-batch consistency.

Thin and fragile workpieces susceptible to damage, poor adaptation to rigid impact

Workpieces such as phone housings, PCBs, and precision components are thin, fragile, and force-sensitive. Conventional drives with abrupt start-stop characteristics produce strong mechanical shock, leading to deformation, edge chipping, and misalignment, compromising yield rates.

Highly variable non-standard conditions, single-solution inadequacy

3C non-standard equipment is highly customized, spanning low-speed simple fixtures, medium-speed precision processes, and high-speed integrated production lines. Significant variations in load, cycle time, and travel distance make it impossible for a universal drive to balance both cost and performance requirements.

Slow response in high-speed processes, mismatch with production line cycle time

High-end 3C assembly, inspection, and lamination lines operate at tight cycle times, demanding fast command response, precise position latching, and rapid speed switching. Conventional control systems suffer from noticeable response delays and stuttering, limiting overall line automation efficiency.

Working Condition

Stepper Motor System Applications

Suitable for medium‑low speed point‑to‑point positioning, light‑duty auxiliary movements, and simple fixtures in 3C non‑standard automation, including:
Open‑loop stepper: For constant load, low‑speed intermittent, and simple positioning/conveying stations with no risk of step loss, e.g., basic screw tightening and simple pick‑and‑place.
Closed‑loop stepper: For medium‑low speed reciprocating applications with load variations where step loss must be eliminated, e.g., mid‑range dispensing and precision fastening.
Common limitations: Not suitable for sustained high‑frequency reciprocation (>60 cycles/min), high‑speed trajectory interpolation, or heavy impact loads.

Servo Motor System Applications

Suited for high‑speed/high‑frequency, precision trajectory, and multi‑axis coordinated core processes in 3C non‑standard automation, including:
High‑voltage servo (220V/380V): For high‑speed laminating, vision alignment, and multi‑axis production lines in standard industrial settings.
Low‑voltage servo (24V/48V): For moving parts, hand‑held devices, and compact applications with special electrical safety requirements.
Integrated servo: For extremely compact spaces requiring distributed mounting on light‑duty high‑speed axes.
Technical features: High dynamic response (accel/decel <20 ms), high repeat positioning accuracy (±0.01 mm), EtherCAT bus synchronization, and flexible acceleration/deceleration algorithms to minimise start‑stop impact.

Tiered Technical Solutions

Industry characteristics & selection logic:

3C non‑standard equipment is characterised by light loads (typically ≤5 kg), high speed/high frequency (60–120 cycles/min), and compact space. Torque requirements for dispensing valves, screwdriver bits, and small transfer tables are generally in the range 0.027–2.0 N·m. Selection must balance five dimensions: installation space, control accuracy, dynamic response, bus requirements, and cleanliness. 3C lines commonly demand low particle emission and low noise (≤45 dB), with some precision stations requiring ISO Class 6–7 cleanliness.

Solution 1: Micro precision open‑loop stepper – Ultra‑compact precision adjustment

• Matched products 20J1840-404 (holding torque 0.027 N·m, frame 20 mm) or 28J1851-407 (0.1 N·m, frame 28 mm) + 2DM415 (current 0.21–1.50 A, DC 18–36 V). • Applicable equipment Micro camera module focusing mechanisms, micro‑speaker dispensing positioning, precision electronic component trimming fixtures (load ≤0.1 kg). • Technical features NEMA 8/11 ultra‑small frame (mounting 20×20 mm / 28×28 mm) for space‑constrained areas. 2DM415 supports 256 micro‑steps, 0.007° micro‑step angle for micron‑level adjustment. Extremely low temperature rise (housing ≤15 °C), noise ≤38 dB. Torque limit 0.027–0.1 N·m, only for no‑load or extremely light precision trimming. Option : low‑particle version available for clean environments. • Selection boundary Upgrade to Solution 2 if load >0.2 kg or continuous reciprocation (>30 cycles/min) is required.
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Solution 2: General‑purpose economical open‑loop stepper – Basic positioning & simple fixtures

• Matched products 42J1848-425 (0.48 N·m) or 57J1841-420 (0.75 N·m) + 2DM542 (current 1.0–4.2 A, DC 24–48 V). • Applicable equipment Small simple screw fastening machines (single‑axis), light material transfer fixtures (X‑Z axis), basic spot dispensing equipment (<3 axes). • Technical features NEMA 17/23 small frame for 3C compact spaces. Point‑to‑point accuracy ±0.05 mm, smooth start/stop. Noise ≤42 dB, suitable for general clean workshops. Not recommended for sustained high‑frequency reciprocation (>60 cycles/min). step loss risk under sudden load changes (>30%). • Selection boundary Suitable for loads ≤3 kg, single‑axis intermittent operation; upgrade to closed‑loop or servo for multi‑axis coordination or cycle rate >60/min.
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Solution 3: Bus open‑loop stepper – EtherCAT distributed positioning

• Matched products 57J1856-440 (1.2 N·m) or 57J1876-447 (2.0 N·m) + 2DM556‑EC (EtherCAT, current 1.4–5.6 A, DC 24–60 V). • Applicable equipment Medium automatic screw fastening machines (multi‑axis independent control), 3C auxiliary material applicators (multi‑station coordination), small automated inspection line positioning stations. • Technical features EtherCAT bus support, up to 64 axes distributed with JMC‑101 controllers. Bus communication delay <1 ms, sync jitter <5 μs (non‑real‑time sync level). Still open‑loop. risk of step loss under sudden load changes (>20%). Suited for multi‑station independent positioning, not for high‑precision trajectory interpolation (e.g., arc dispensing). • Selection boundary Suitable for loads ≤5 kg, axes acting independently without strict synchronisation; for multi‑axis synchronous interpolation, refer to Solution 5 (bus closed‑loop) or Solution 8 (bus servo).
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Solution 4: Mid‑range closed‑loop stepper – Precision positioning & step‑loss prevention

• Matched products 57J1854EC‑1000‑LS (1.0 N·m, 1000 P/R) or 57J1880EC‑1000‑LS (2.0 N·m, 1000 P/R) + 2HSS57 (current 0–5 A, DC 24–60 V). • Applicable equipment Mid‑range automatic dispensing machines (3‑axis), precision fastening equipment (multi‑axis), medium 3C material transfer equipment (X‑Y‑Z) • Technical features  Built‑in 1000‑line encoder for closed‑loop control, repeat positioning ±0.02 mm. 1.0 N·m for dispensing and fastening torque; 2.0 N·m for medium transfer horizontal loads (≤8 kg). Low heat (housing rise ≤40 °C), suitable for 8–16 h continuous running; noise ≤40 dB. Dynamic response, high‑speed performance (torque drops sharply above 600 rpm), and overload capacity are significantly lower than AC servo. • Selection boundary Suitable for cycle ≤60/min, load ≤8 kg, no high‑speed trajectory interpolation; for >80/min or arc interpolation, use servo.
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Solution 5: Bus closed‑loop stepper – EtherCAT closed‑loop distributed control

• Matched products 57J1880EC‑1000‑LS (2.0 N·m) or 60J1887EC‑1000‑LS (3.0 N·m, 1000 P/R) + 2HCS558‑EC (EtherCAT closed‑loop drive, current 0–5.8 A) • Applicable equipment Multi‑station automatic screw fastening (6–12 axes EtherCAT), 3C in‑line dispensing/inspection machines, flexible assembly line positioning stations • Technical features EtherCAT closed‑loop control with real‑time encoder error correction and high‑speed bus communication; 1000 P/R encoder feedback eliminates step loss, bus sync accuracy <1 μs; Low heat (rise ≤30 °C), noise ≤40 dB; Suited for applications requiring accuracy and coordination but not yet servo‑level high‑speed response (cycle ≤70/min). • Selection boundary Multi‑axis coordinated positioning, load ≤10 kg, cycle ≤70/min; beyond these limits or for high‑speed trajectory interpolation (arcs, splines), use Solution 8 (bus servo).
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Solution 6: Integrated closed‑loop stepper – Compact installation & simplified wiring

• Matched products IHSS57‑36‑10 (1.0 N·m, 36 V) or IHSS57‑36‑20 (2.0 N·m, 1000 P/R encoder, 36 V) • Applicable equipment Small precision dispensing platforms, simple fastening robots, light inspection transfer tables (load ≤5 kg) • Technical features Drive and control integrated into motor body, no external drive needed, axial length reduced by ~30 mm; Supports pulse/direction control, optional brake (holding torque ≥2× rated); 1000 P/R encoder closed‑loop, repeat positioning ±0.025 mm; Torque range 0.5–3.5 N·m, no high‑speed bus communication (pulse‑only); IP54 optional for light dust environments. • Selection boundary Stand‑alone control, tight space, no bus communication; for multi‑axis or EtherCAT, use Solution 7.
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Solution 7: Bus integrated closed‑loop stepper – Distributed intelligent positioning

• Matched products IHSS57‑36‑20‑EC (2.0 N·m, EtherCAT) or IHSS60‑36‑30‑EC (3.0 N·m, EtherCAT, 1000 P/R encoder) • Applicable equipment Distributed positioning stations on smart assembly lines, multi‑station automatic fastening systems, flexible conveyor positioning modules • Technical features Drive, control, and communication fully integrated, EtherCAT bus; No cabinet‑mounted drive, minimal wiring, bus sync <1 μs; Digital I/O (3 in / 2 out) for simple logic; 1000 P/R encoder closed‑loop, repeat positioning ±0.02 mm; Torque and response lower than servo (accel ≤0.5 G); not for high‑speed trajectory interpolation. • Selection boundary Suitable for distributed architectures with wiring constraints; load ≤8 kg, cycle ≤60/min; for high‑speed high‑accuracy trajectories, use Solution 10 (bus integrated servo).
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Solution 8: Heavy‑duty high‑speed high‑voltage servo – EtherCAT high‑speed high‑accuracy

• Matched products 60JASM504230K (400 W, rated torque 1.27 N·m, peak 3.82 N·m, rotor inertia 0.5×10⁻⁴ kg·m²) or 80JASM507230K (750 W, rated 2.39 N·m, peak 7.1 N·m, 17‑bit encoder) + JAND7502‑23B‑EC (EtherCAT drive) + JMC‑101‑16 (EtherCAT controller, cycle 125 μs–1 ms adjustable) • Applicable equipment High‑speed fully automatic laminating (multi‑axis), precision vision alignment assembly lines (4–6 axes), high‑speed dispensing/spraying (continuous path), multi‑axis 3C non‑standard lines • Technical features 60JASM504230K low inertia (0.5×10⁻⁴ kg·m²), accel/decel <20 ms, suited for high‑speed laminating heads and light dispensing valves (load ≤2 kg); 80JASM507230K (17‑bit encoder, 131072 p/r) for medium vision alignment platforms and multi‑axis coordination (load ≤10 kg); 17‑bit encoder enables micron‑level path tracking, complex interpolation accuracy ±0.01 mm; Long‑term high‑speed operation (24 h) drift <0.02 mm; noise ≤45 dB; Selection note : For loads >10 kg or faster accel/decel (<10 ms), upgrade to 110 frame (≥1000 W, 4.77 N·m) or 130 frame. • Environmental adaptation IP54/IP65 optional for light dust and cleaning agents in 3C lines.
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Solution 9: Compact safe low‑voltage servo – High‑speed high‑accuracy for mobile/hand‑held equipment

• Matched products 60ASM400‑5‑17BCH (48 V, 400 W, rated 1.27 N·m, peak 2.54 N·m, 17‑bit encoder) + MCAC610‑23B‑EC (EtherCAT low‑voltage drive, 10 A) • Applicable equipment Mobile platform precision alignment, hand‑held automatic fastening tools, clean‑room precision assembly equipment • Technical features 48 V SELV supply meets electrical safety for mobile/hand‑held equipment; 17‑bit encoder for precision positioning (repeat ±0.01 mm); Compact drive (110×76×35 mm) for distributed mounting; Bus control for multi‑axis coordination, sync jitter <1 μs; Power range 100 W–3000 W optional; Noise ≤40 dB, suitable for clean workshops. • Selection boundary Suitable for loads ≤5 kg, mobile power or hand‑held applications; for heavy fixed equipment (>10 kg), use Solution 8 (high‑voltage servo).
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Solution 10: Bus integrated low‑voltage servo – Ultimate compact high‑speed high‑accuracy

• Matched products IESV60‑30‑40‑48‑17BC‑EC (48 V, 400 W, rated 1.27 N·m, 17‑bit encoder, EtherCAT) • Applicable equipment Collaborative robot end‑effectors, smart hand‑held precision tools, ultra‑compact precision positioning axes (mounting length ≤60 mm) • Technical features Drive, control, communication fully integrated, no external drive, axial length ~40 mm shorter than discrete solution; EtherCAT bus, sync jitter <1 μs; 17‑bit absolute encoder, repeat positioning ±0.01 mm; Low heat (rise ≤25 °C), noise ≤40 dB; Torque limit 1.27 N·m (peak 2.54 N·m), only for light loads (≤2 kg) high‑speed applications; IP54/IP65 optional. • Selection boundary Load ≤2 kg, mounting length ≤80 mm, bus control required; for overload or high torque, upgrade to discrete low‑/high‑voltage servo.
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Technical Advantages

Ten solutions covering all levels

From micro open‑loop steppers to bus‑integrated servos, covering the full accuracy and cost spectrum of 3C non‑standard automation, precisely matching diverse custom needs.

Tiered precision positioning

Open‑loop steppers for basic low‑speed positioning (±0.05 mm), closed‑loop steppers for step‑loss elimination (±0.02 mm), servos for high‑speed/high‑frequency/high‑accuracy (±0.01 mm), ensuring batch process consistency.

Algorithm‑based flexible motion for damage prevention

Servo‑optimised flexible accel/decel algorithms suppress start‑stop impact, protecting delicate 3C workpieces; closed‑loop steppers with low heat design suit extended operation.

Modularity and bus compatibility

Open‑/closed‑loop steppers and servos all support EtherCAT; integrated products enable distributed control for rapid adaptation to non‑standard application changes.

Industry Application Cases

Micro precision trimming – Micro stepper for ultra‑compact precision adjustment

For micron‑level adjustment of 3C camera modules and acoustic components, micro steppers provide stable precision with ultra‑small size and micro‑stepping at controlled cost.

Simple point‑to‑point – Open‑loop stepper for basic 3C non‑standard tooling

For low‑speed intermittent point‑to‑point operations, open‑loop steppers offer smooth, accurate positioning with excellent cost‑performance; not for sustained high‑frequency reciprocation.

Precision upgrade – Closed‑loop stepper for mid‑range 3C precision processes

Addresses step‑loss in medium‑low speed reciprocating dispensing/fastening with real‑time error compensation, greatly improving repeatability for mid‑range equipment below ultra‑high cycle rates.

Distributed intelligence – Bus integrated stepper for smart assembly lines

For multi‑station distributed control, integrated bus steppers combine drive and communication, minimising wiring and reducing system cost.

High‑speed precision – Servo for high‑end 3C laminating & dispensing

For high‑speed laminating and precision dispensing, servos deliver fast response and smooth trajectory control with flexible algorithms to complete complex paths accurately.

Line integration – Bus servo for fully automatic 3C non‑standard lines

For complete 3C lines, EtherCAT synchronises multi‑axis coordination with unified cycle timing, seamless station transition, meeting high‑mix low‑volume high‑accuracy production.

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