Motion Control Solutions for Intelligent Logistics & Warehousing

Heavy-Load Stable Movement with Precision Positioning for Efficient and Safe Automated Warehouse Logistics

Intelligent Logistics & Warehousing

Industry technical challenges

Severe rigid start-stop impact in heavy-load operations, risk of cargo swaying and falling

Stacking and heavy-duty transfer involve wide load ranges. Motors alone cannot eliminate impact; start-stop smoothness is determined by the controller’s S-curve acceleration/deceleration algorithm. Conventional drives with simple trapezoidal acceleration/deceleration produce significant inertial shock, causing cargo sway and potential falling.

Large positioning deviation in travel motion, rack alignment failure

Open-loop steppers lack travel feedback, causing cumulative errors from floor slippage and load fluctuations. Conventional closed-loop steppers have limited torque margin, leading to positional drift over time in medium-duty lifting/transfer and heavy-duty stacking, resulting in rack alignment failures.

Poor durability in high-frequency continuous operation, equipment breakdowns causing line congestion

Round-the-clock cyclic handling with conventional drives leads to heat accumulation and torque degradation, causing breakdowns and material flow congestion.

Multi-equipment coordination timing disorder

Insufficient synchronization accuracy in multi-machine coordination leads to process conflicts and inefficient scheduling.

Working Condition

Stepper Motor System Applications

Suitable for light-duty fixed-platform sorting conveyors and small point-positioning fixtures in intelligent logistics & warehouse, including:
Open-loop stepper: For intermittent low-speed conveying on fixed platforms and simple limit positioning.
Closed-loop stepper: For light horizontal transfer and fixed sorting conveying where accumulated positional deviation must be eliminated.
Critical restrictions (must be strictly observed):
Prohibited for AGV/AMR travel drives: Neither open- nor closed-loop steppers provide odometry feedback; wheel slip causes accumulated positioning errors, failing closed-loop travel positioning requirements.
Prohibited for medium or larger lift/transfer: Lifting involves large load variation; stepper torque margin is insufficient, leading to step loss and safety hazards.
Prohibited for heavy-duty stacker travel/lift axes: Both torque and dynamic response are inadequate.

Servo Motor System Applications

Suited for core applications such as 3D stacking, heavy transfer, AGV/AMR travel mechanisms, and high-speed sorting lines, including:
High-voltage servo (220V/380V): For AS/RS stackers (travel/lift/forks), heavy transfer machines, high-speed sorting lines, and AGV precision travel drives.
Integrated servo: For light AGV/AMR travel drives and compact transfer units.
Servo with brake: For vertical lift axes to ensure safety on power loss.
Technical features: Dual-loop speed/position control, torque adaptation, and controller-based S-curve accel/decel for smooth heavy-load transfer and precise rack alignment (±0.5 mm); bus-based multi-device timing synchronisation ensures safe transfer, accurate positioning, and efficient material flow.

Tiered Technical Solutions

Industry characteristics & selection logic:

Intelligent logistics & warehouse are defined by heavy loads (100–2000 kg), long strokes (aisles >50 m), 24/7 operation, positioning accuracy (±0.5–2 mm), and safety/reliability. Stacker travel axes require high inertia matching (motor rated torque ≥1.5× load-reflected torque); lift axes must have brakes for power-off safety; AGV travel requires closed-loop position control (steppers strictly prohibited). Selection must balance five dimensions: load weight, travel distance, positioning accuracy, safety, and environmental protection. Dust is common; IP54 is recommended for critical axes.

Solution 1: Economical fixed conveying – Open-loop stepper for fixed-platform conveying

• Matched products 57J1856‑440 (1.2 N·m) or 86J1880‑460 (4.5 N·m) + 2DM556 (1.4–5.6 A, DC 24–60 V) or 2DM860 (2.1–8.4 A, DC 24–110 V) • Applicable equipment Light fixed sorting conveyors (horizontal fixed platform, load ≤20 kg), point-positioning fixtures (no travel, no lift), simple material guides • Technical features Smooth at medium-low speeds (≤300 rpm); resonance points require vibration suppression; Strict restrictions: Prohibited for AGV/AMR travel – no odometry, slip causes accumulated errors; Prohibited for medium/larger lift/transfer – insufficient torque margin under variable loads, safety risk; Prohibited for heavy stacker travel/lift axes – torque and dynamics inadequate; Only for fixed-platform intermittent low-speed conveying (line speed ≤15 m/min); IP54 optional. • Selection boundary Constant load (fluctuation <10%), no travel, no lift, fixed mounting; any violation requires upgrade to Solution 4/5/6 (servo).
Intelligent Logistics & Warehousing-solution-1

Solution 2: Horizontal transfer upgrade – Closed-loop stepper for light horizontal transfer

• Matched products 86J1880EC‑1000‑LS (4.5 N·m) or 86J18118EC‑1000‑LS (8.5 N·m, 1000 P/R) + 2HSS86H (0–6 A, DC 30–100 V) • Applicable equipment Light horizontal material transfer (single-axis, no vertical lift, load ≤30 kg), low-speed fixed sorting conveying (horizontal reciprocation, speed ≤20 m/min) • Technical features 1000‑line encoder closed‑loop compensation for low‑speed step loss, repeatability ±0.02 mm; Low heat (rise ≤30 °C), better fatigue resistance than open‑loop; Critical limitation: only for horizontal transfer without vertical lift and with stable load (fluctuation <15%); insufficient torque margin for vertical lift or dynamic variable loads – prohibited for medium lift/transfer and heavy travel equipment; IP54 optional. • Selection boundary Horizontal single‑axis, load ≤30 kg, no lift; upgrade to Solution 4 (servo with brake) for vertical lift or load >50 kg.
Intelligent Logistics & Warehousing-solution-2

Solution 3: Integrated horizontal transfer – Integrated closed‑loop stepper for compact horizontal drive

• Matched products IHSS86‑60‑45 (4.5 N·m) or IHSS86‑80‑85 (8.5 N·m, 1000 P/R encoder) • Applicable equipment Light horizontal transfer table drives (load ≤25 kg), fixed sorting conveyor drives (compact installation) • Technical features Drive integrated into motor, saving cabinet space (axial length shortened ~35 mm); 1000 P/R encoder closed‑loop eliminates positional deviation, repeatability ±0.025 mm; Optional brake for horizontal position holding (holding torque ≥2× rated); Only for horizontal, constant‑load, non‑lift compact transfer stations. • Selection boundary Same as Solution 2, prioritised for compact installations; upgrade to Solution 4 for vertical lift or heavy loads.
Intelligent Logistics & Warehousing-solution-3

Solution 4: Heavy‑duty stacking/lifting – High‑voltage servo with brake (revised)

• Matched products Light stacking (load ≤500 kg): 130JASM515220K (1500 W, rated 7.2 N·m, peak 24.6 N·m, 17‑bit) + brake Medium stacking (500–1500 kg): 130JASM520220K (2000 W, rated 9.55 N·m, peak 28.65 N·m) or 180JASM530315K (3000 W, rated 18.5 N·m, peak 46 N·m, 23‑bit) + brake Heavy stacking (>1500 kg): 180JASM540320K (4000 W, rated 19 N·m, peak 47.5 N·m) or 180JASM544315K (4400 W, rated 28 N·m, peak 70 N·m) + brake Drives: JAND15002‑23B‑EC (1500 W) / JAND30002‑23B‑EC (3000 W) / JAND4000‑series (EtherCAT) • Applicable equipment AS/RS stackers (travel/lift/fork axes), heavy material transfer lines, high‑speed smart sorting heavy‑duty divert arms, fully automatic storage/retrieval lines • Technical features Controller S‑curve accel/decel suppresses heavy‑load inertia impact (accel 0.3–0.5 m/s² adjustable); Position/speed closed‑loop, real‑time error compensation on travel/lift, repeatability ±0.5 mm; Brake motor standard (holding torque ≥1.5× rated) for lift axis safety on power loss; Bus‑based multi‑device timing synchronisation (jitter <1 μs) ensures stable load transfer; Full‑day heavy operation may cause minor thermal expansion and mechanical wear drift (<0.5 mm/24 h); regular calibration recommended (weekly); Selection constraint: For load >500 kg or lift height >10 m, must use 180 frame (≥15 N·m); rated torque ≥1.5× load‑reflected torque; IP54/IP65 optional (IP54 recommended for warehouse dust). • Selection boundary Stacker travel/lift/fork and heavy transfer must use this solution; stepper solutions strictly prohibited.
Intelligent Logistics & Warehousing-solution-4

Solution 5: AGV/AMR travel drive – Integrated servo for mobile closed‑loop positioning (revised)

• Matched products Light AGV (vehicle weight ≤200 kg, payload ≤100 kg): IESV80‑30‑75‑48‑EC (48 V, 750 W, rated 2.38 N·m, peak 7.14 N·m, 17‑bit encoder, EtherCAT) Medium AGV (vehicle 200–600 kg, payload 100–300 kg): 130ASM1500‑5‑17BCQ‑DB15 (48 V, 1500 W, rated 4.78 N·m, peak 14.34 N·m, 17‑bit) + MCAC845‑23B‑EC (45 A drive) Heavy AGV (vehicle >600 kg): 130ASM3000‑5‑17BCQ‑DB15 (48 V, 3000 W, rated 9.5 N·m, peak 28.5 N·m) + MCAC8A0‑23B‑EC (100 A drive) or dual‑wheel drive (2×1500 W) • Applicable equipment AGV/AMR travel drive wheels (differential/steering), under‑drive AGV units, mobile robot chassis drives • Technical features Fully integrated drive, control, communication (integrated version) for compact AGV installation; 17‑bit encoder for closed‑loop odometry feedback, eliminating slip‑induced cumulative errors (positioning accuracy ±2 mm, with navigation system ±5 mm); EtherCAT bus for real‑time host communication, sync jitter <1 μs; Low‑voltage supply (24–72 V) meets SELV safety for mobile equipment; Supports position/speed/torque control modes for various AGV driving conditions; Selection constraint (critical): 750 W (2.38 N·m) only for light AGV (vehicle ≤200 kg); 200–600 kg must use 1500 W (≥4.78 N·m); >600 kg must use 3000 W (≥9.5 N·m) or dual‑wheel drive; Requires magnetic tape/QR code/laser SLAM navigation for global positioning; servo only handles travel closed‑loop; IP54/IP65 optional for AGV chassis. • Selection boundary AGV/AMR travel drives must use this solution (servo closed‑loop); stepper solutions strictly prohibited. Select strictly per vehicle‑weight grading above.
Intelligent Logistics & Warehousing-solution-5

Solution 6: Distributed bus servo – Multi‑device coordination for smart warehouse lines

• Matched products 80JASM507230K (750 W, 2.39 N·m) or 130JASM515220K (1500 W, 7.2 N·m) + JAND7502‑23B‑EC / JAND15002‑23B‑EC + JMC‑101‑32 (32‑axis EtherCAT controller) • Applicable equipment Smart warehouse lines (conveying + sorting + stacking + storage/retrieval multi‑device coordination), high‑speed cross‑belt sorters (multi‑car drives), fully automated shuttle systems • Technical features EtherCAT bus supports up to 64 axes synchronised (jitter <1 μs); High‑precision timing coordination among multiple devices improves throughput; Each axis has independent position/speed closed‑loop for real‑time error correction; Supports multi‑coordinate interpolation for complex warehouse flow planning; Each axis must be sized individually per actual load, referring to Solution 4/5 grading; IP54 recommended for the entire line. • Selection boundary Suitable for full‑line multi‑device coordination; each sub‑axis must strictly follow load‑torque mapping from Solution 4/5.
Intelligent Logistics & Warehousing-solution-6

Technical Advantages

Strict load‑based tiering

Open/closed‑loop steppers only for fixed‑platform light conveying (no travel, no lift); servos cover heavy travel, lift, and stacking under all dynamic conditions; AGV travel must use closed‑loop servo – steppers prohibited.

Algorithm‑driven smooth transfer

Controller S‑curve accel/decel combined with servo closed‑loop torque regulation suppresses load sway (smooth acceleration transition) – not achieved by servo alone.

Safety brake standard on lift axes

Vertical lift axes come standard with servo brake motors, automatically engaging on power loss to secure heavy loads (holding torque >1.5× rated).

Full closed‑loop long‑term positioning

Servo real‑time error correction (17‑bit encoder) greatly reduces long‑term accumulated drift (<0.5 mm/24 h); periodic mechanical calibration required.

Industry Application Cases

Light sorting – Open‑loop stepper for fixed‑platform conveying fixtures

For light fixed sorting and auxiliary conveying, open‑loop steppers are smooth and reliable – only for fixed belts without travel or lift; not for AGV or transfer machine travel mechanisms.

Precise transfer – Closed‑loop/integrated stepper for light horizontal transfer

Addresses long‑term positional drift in light horizontal transfer/sorting with real‑time compensation – only for horizontal, no‑lift, stable‑load transfers; servo recommended for medium transfer with lift.

AGV travel – Integrated servo for AGV/AMR travel drives

For mobile robot travel, integrated servos combine drive and communication, safe low‑voltage supply, and 17‑bit encoder odometry closed‑loop to eliminate slip‑induced cumulative errors.

Heavy warehouse – High‑voltage servo with brake for stacker travel/lift

For heavy 3D stacking, servo closed‑loop travel positioning and torque adaptation, brake ensures lift safety, S‑curve keeps loads stable with precise rack alignment.

Smart line – Bus servo for fully automated warehouse lines

For high‑end smart warehouses, EtherCAT provides highly coordinated timing across conveying, sorting, stacking, and storage/retrieval – only minor thermal/mechanical drift over long runs; regular calibration maintains high accuracy.

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