Mechanical Shaft & Flange
Custom front/rear shaft extensions, D-flats, keyways, hollow shafts, helical pinion gears, and customized NEMA mounting flanges.
ISO 9001:2015 Certified Quality Assurance
0.9° & 1.8° High-Res Step Angle Accuracy
US Motion Engineering & Prototype Labs
Custom Shafts, Leads & Integrated Gearboxes
Precision Motion Engineering
Custom Stepper Motors Tailored to Your Load Profile
Since 1985, Telco Intercontinental Corp. has partnered with global OEM design teams to engineer precision hybrid stepper motors that solve strict spatial, mechanical, and thermal constraints. Unlike standard catalog motors, our stepper platforms are fully customizable—from custom winding resistance and special magnetic materials to integrated lead screws and encoder assemblies.
Whether your machine requires precise open-loop positioning for automated fluid dispensing or ultra-quiet operation for medical analyzers, Telco’s engineering team provides thorough electromagnetic calculations, prototype thermal validation, and documented change notification for smooth volume deployment.
- High Torque-to-Frame Ratio: Optimized rotor-stator air gaps and premium rare-earth magnets yield maximum torque density.
- Low Resonance & Smooth Microstepping: Precision rotor grinding and tooth geometry minimize audible noise and mid-range instability.
- Comprehensive Modification: Custom D-cut shafts, splines, helical gears, IP65/67 environmental sealing, and high-temp wire insulation.
- Traceable Quality Control: Drawing-controlled manufacturing with full First Article Inspection (FAI) and batch-to-batch consistency.
NEMA 08 to 34Configured for severe duty, lab precision & high torque
Engineering Matrix
Hybrid Stepper Motor Platform Specifications
Compare standard frame sizes and performance envelopes below. Every parameter can be modified by our application engineers to meet your continuous torque, voltage, and space requirements.
| Frame Size | Step Angle Options | Holding Torque Range | Current / Phase | Common Applications |
|---|---|---|---|---|
| NEMA 08 (20 mm) | 1.8° | 0.015 – 0.04 Nm (2.1 – 5.6 oz-in) | 0.2 – 0.6 A | Micro-fluidic pumps, miniature valves, optical positioning |
| NEMA 11 (28 mm) | 1.8°, 0.9° | 0.06 – 0.12 Nm (8.5 – 17 oz-in) | 0.5 – 1.2 A | Medical diagnostic analyzers, syringe drivers, semiconductor tools |
| NEMA 14 (35 mm) | 1.8°, 0.9° | 0.14 – 0.35 Nm (20 – 50 oz-in) | 0.8 – 1.5 A | 3D printers, compact pick-and-place, automated pipetting |
| NEMA 17 (42 mm) | 1.8°, 0.9° | 0.22 – 0.65 Nm (31 – 92 oz-in) | 1.0 – 2.5 A | Lab automation, linear actuators, packaging machinery, robotics |
| NEMA 23 (57 mm) | 1.8°, 0.9° | 0.50 – 2.20 Nm (71 – 311 oz-in) | 1.5 – 4.2 A | CNC equipment, conveyor drives, automated doors, industrial axes |
| NEMA 24 (60 mm) | 1.8°, 0.9° | 1.50 – 3.10 Nm (212 – 439 oz-in) | 2.0 – 5.0 A | High-load industrial positioning, textile machines, solar trackers |
| NEMA 34 (86 mm) | 1.8°, 0.9° | 3.50 – 12.0 Nm (495 – 1700 oz-in) | 3.0 – 8.0 A | Heavy-duty automation, valve actuators, AGV drives, indexing heads |
* Note: All platform models can be configured with integrated planetary or spur gearboxes, optical encoders, magnetic encoders, and custom harness connectors.
Customization Capabilities
Engineering Beyond Catalog Constraints
From minor shaft modifications to ground-up electromagnetic design, Telco adapts motor hardware to seamlessly integrate into your structural and electrical architecture.
Integrated Linear Actuators
Acme and ball lead screws integrated directly into the motor rotor (Captive, Non-Captive, and External linear actuator configurations).
Windings & Electrical
Tailored coil resistance and inductance for low-voltage battery drivers or high-bus-voltage industrial microstepping drives.
Precision Gearheads
Factory-assembled planetary or spur gearboxes offering gear ratios from 3:1 to 300:1 for high torque output and load matching.
Environmental Protection
IP65/IP67 shaft seals, moisture-resistant potted stators, high-temperature bearings, and vacuum-rated lubricants.
Feedback & Wiring Harnesses
Incremental or absolute optical/magnetic encoders pre-installed with customer-specified strain relief and connector housings.
Industry Applications
Proven Motion Control for Critical OEM Markets
Our stepper motors are field-proven across high-reliability sectors where precise motion repeatability and zero unplanned downtime are essential.
Medical & Life Sciences
Blood analyzers, IV dosing systems, automated pipetting robots, and surgical tools requiring silent motion and zero cogging.
Low NoiseHigh ResolutionISO 13485 Compliant
Laboratory Automation
Sample carousel indexing, microplate handlers, automated centrifuges, and liquid handling platforms demanding 24/7 duty cycles.
0.9° Step AccuracyLong Service LifeRepeatability
Semiconductor & Electronics
Wafer inspection stages, surface-mount technology (SMT) pick-and-place, wire bonders, and cleanroom linear positioning equipment.
Cleanroom GreasesLow VibrationHigh Dynamic Response
Industrial & Packaging Automation
Labeling heads, volumetric filling systems, conveyor diverters, and automated material handling indexing drives.
IP67 SealingHigh Holding TorqueRugged Construction
Security & Optics Positioning
Pan-tilt-zoom (PTZ) camera gimbals, satellite tracking antennas, laser optics alignment, and thermal imaging stages.
Smooth MicrosteppingCompact FootprintZero Backlash Gearheads
Robotics & AGV Subsystems
Robotic gripper actuators, steering angle feedback assemblies, automated guided vehicle auxiliary axes, and peristaltic drives.
Integrated EncodersCustom HarnessingHigh Efficiency
OEM Workflow
Structured 5-Stage Stepper Motor Engineering Path
We guide your engineering, quality, and supply chain teams from initial concept selection through prototype testing to scalable volume production.
01
Specify
Target torque, step angle, speed curve, duty cycle, mechanical envelope, and voltage inputs defined.
02
Model
Electromagnetic simulation, thermal modeling, and preliminary CAD draw-up by US application engineers.
03
Prototype
Rapid functional prototype sample delivery with comprehensive torque curve and resistance test reports.
04
Validate
Customer machine validation, environmental life testing, drawing freeze, and FAI report submission.
05
Release
Mass production under strict ISO quality control, change management (ECN), and scheduled release delivery.
Technical FAQ
Answers for OEM Engineering & Sourcing Teams
Telco offers extensive mechanical and electrical customization, including specialized shaft geometries (D-flats, keyways, helical cuts, lead screws), custom winding resistance and inductance for specific drivers, IP-rated seals, high-temperature wire insulation, custom cabling with integrated connectors, and optical or magnetic encoder additions.
A 0.9° step angle provides 400 steps per revolution, delivering twice the positional resolution and significantly lower resonance/vibration compared to a standard 1.8° step angle (200 steps/rev). 0.9° hybrid steppers are ideal for high-precision fluid dispensing, medical diagnostic imaging, and optical positioning.
Yes. Telco manufactures linear actuator stepper motors featuring integrated precision lead screws or ball screws (External, Non-Captive, and Captive shaft designs) with anti-backlash nuts, eliminating the need for external mechanical couplings and reducing system axial length.
Modified standard configurations (custom shafts, leads, or connectors) generally ship within 3 to 5 weeks. Fully customized electromagnetic designs requiring custom lamination stacks or special housing tooling typically take 8 to 12 weeks including complete prototype validation reports.
Every production lot undergoes 100% inspection for inductance, resistance, dielectric withstand, step accuracy, and holding torque. OEM programs include First Article Inspection (FAI) reports, PPAP documentation, ROHS/REACH compliance declarations, and strict Engineering Change Controls (ECN).
Need a Custom Stepper Motor Solution?
Speak directly with our US-based motion control application engineers. We will review your load profile, shaft dimensions, and volume requirements to deliver technical drawings and prototype pricing.