K13 Electrospinning Needle Traverse Motion Controller
| Brand | ChuBai / Truelab |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | K13 |
| Price | USD 8,900 (FOB Shanghai) |
| Speed Range | 0–1000 mm/min (±1 mm/min accuracy) |
| High-Resolution Mode | 0–300 mm/min (±0.1 mm/min accuracy) |
| Dimensions (W×D×H) | 275 × 250 × 110 mm |
| Weight | 3.5 kg |
| Power Supply | AC 220 V, 50 Hz |
Overview
The K13 Electrospinning Needle Traverse Motion Controller is an industrial-grade motion control unit engineered for precise, repeatable lateral translation of coaxial or single-nozzle spinnerets in laboratory-scale and pilot-line electrospinning systems. Designed around a closed-loop stepper motor drive architecture, the K13 delivers deterministic linear displacement with programmable velocity profiles, enabling consistent fiber alignment, uniform nanofiber mat thickness, and controlled deposition patterns across rotating or static collectors. Unlike open-loop controllers, the K13 integrates real-time position feedback via optical encoder coupling (optional upgrade path to Hall-effect sensing), ensuring positional fidelity over extended duty cycles and eliminating step-loss under variable mechanical load—critical when driving high-inertia needle carriers or multi-axis synchronized stages. Its core function is to decouple needle motion control from the high-voltage electrospinning power supply and solution delivery system, allowing independent optimization of jet stability, solvent evaporation kinetics, and collector geometry interaction.
Key Features
- Precision stepper motor driver with microstepping resolution (1/256 step mode standard), supporting smooth acceleration/deceleration ramps to minimize mechanical shock during direction reversal
- Dual-range speed control: coarse range (0–1000 mm/min, ±1 mm/min repeatability) and fine-tuning range (0–300 mm/min, ±0.1 mm/min resolution) selectable via front-panel toggle switch
- Adjustable stroke length (10–300 mm) via rotary encoder input; digital display shows real-time position, direction, and current speed
- Integrated emergency stop circuit compliant with IEC 60204-1; hardwired cutoff interrupts motor power within <10 ms upon activation
- Modular DIN-rail mountable chassis with IP20-rated enclosure; reinforced aluminum housing dissipates heat without forced cooling
- RS-485 communication interface (Modbus RTU protocol) for integration into centralized process control systems or SCADA environments
Sample Compatibility & Compliance
The K13 controller is compatible with standard 30–60 mm travel linear slides equipped with NEMA 17 or NEMA 23 stepper motors (rated ≥0.5 N·m holding torque). It supports direct connection to brushless DC motor variants via optional PWM-to-step signal converter module (sold separately). The unit complies with CE marking requirements per EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. Electrical safety testing follows EN 61000-6-2 (immunity) and EN 61000-6-4 (emission) standards. For regulated pharmaceutical or medical device R&D environments, the K13’s deterministic motion profile logging (when paired with K22-series firmware) supports ALCOA+ data integrity principles under FDA 21 CFR Part 11-compliant software configurations.
Software & Data Management
While the K13 operates as a standalone hardware controller with intuitive rotary encoder + push-button interface, it supports optional PC-based configuration via Truelab MotionSuite v2.1 (Windows 10/11, .NET 6.0 runtime required). This utility enables saving/restoring motion presets (up to 16 user-defined profiles), exporting trajectory logs (CSV format), and synchronizing start/stop triggers with external TTL signals from syringe pumps or HV generators. Audit trail functionality—including operator ID, timestamp, parameter changes, and firmware version—is retained in non-volatile memory for GLP/GMP-aligned documentation workflows. Firmware updates are performed via USB-C port using signed binary packages verified by SHA-256 checksum.
Applications
- Controlled fabrication of aligned nanofiber scaffolds for neural tissue engineering and vascular graft development
- Uniform deposition of polymer nanofibers onto curved substrates (e.g., mandrels, rotating drums)
- Multi-layered composite mat production via synchronized needle traverse and collector rotation
- Process validation studies requiring traceable motion parameters (e.g., ISO 13485 QMS documentation for Class IIa medical devices)
- Integration into automated electrospinning platforms with robotic arm coordination or vision-guided deposition
FAQ
Can the K13 controller be used with third-party linear stages?
Yes—provided the stage uses a standard bipolar stepper motor with 1.8° step angle and accepts 5–24 V logic-level step/direction signals. Mechanical coupling must maintain ≤0.02 mm backlash.
Is firmware update capability built-in?
Yes—the controller includes a USB-C service port and supports field-upgradable firmware via Truelab-signed binaries. No JTAG debugger required.
Does it support analog voltage input for speed modulation?
No—speed is digitally set via encoder or serial command. Analog input is not implemented to preserve timing determinism and noise immunity.
What is the maximum recommended load inertia ratio?
For optimal dynamic response and settling time <50 ms, the reflected load inertia should not exceed 10× the motor rotor inertia. A 1:5 ratio is recommended for high-precision applications.
Is there a validation package available for regulated labs?
Truelab offers IQ/OQ documentation templates (PDF + editable Word) and calibration certificate traceable to NIST standards upon request—subject to additional service fee.
