SANYO DENKI R720-012E18 E681000C30 – High-Precision AC Servo Motor | R Series Platform
Engineering Background
The SANYO DENKI R Series AC servo motor line represents decades of precision motion engineering, purpose-built for demanding industrial automation environments. The R720-012E18 is a compact, high-torque servo motor designed to deliver consistent dynamic response across a wide range of load profiles. Paired with the E681000C30 encoder assembly, this unit provides high-resolution position feedback essential for closed-loop servo control systems.
Product Positioning
This motor is the preferred choice for OEM machine builders and system integrators requiring a reliable, spec-verified servo drive component from a globally recognized Japanese manufacturer. Konmask.com sources and supplies this unit for MRO replacement, new machine builds, and retrofit projects across Asia-Pacific and international markets.
Complete Technical Specifications
| Manufacturer | SANYO DENKI Co., Ltd. (Japan) |
| Model Number | R720-012E18 |
| Encoder / Option Code | E681000C30 |
| Series | R Series AC Servo Motor |
| Motor Type | AC Brushless Servo Motor |
| Rated Output Power | To be confirmed per datasheet (contact for spec sheet) |
| Rated Speed | Refer to official SANYO DENKI R720 datasheet |
| Encoder Type | Incremental / Absolute (per E681000C30 suffix) |
| Encoder Resolution | High-resolution multi-turn (confirm with datasheet) |
| Shaft Configuration | Keyed shaft (confirm per mechanical drawing) |
| Mounting | Flange mount |
| IP Rating | IP65 (standard R Series) |
| Insulation Class | Class F |
| Ambient Temperature | 0°C to +40°C (operating) |
| Weight | Approx. 180 g (per listing) |
| Country of Origin | Japan |
| Compatible Drives | SANYO DENKI SANMOTION R Series servo amplifiers |
Proven Application Environments
- CNC machine tool axes (milling, turning, grinding)
- Semiconductor wafer handling and pick-and-place equipment
- Packaging machinery — form-fill-seal, cartoning, labeling
- Printing and converting press registration control
- Robotic arm joint actuation (SCARA, Cartesian, delta)
- Electronic assembly SMT placement machines
- Medical device positioning stages
- Textile and winding machinery tension control
Engineering Advantages
- High Torque Density: Compact frame delivers maximum torque-to-inertia ratio, enabling fast acceleration and deceleration cycles.
- Low Cogging: SANYO DENKI’s skewed stator design minimizes torque ripple for smooth velocity control at low speeds.
- High-Resolution Encoder: The E681000C30 encoder option provides precise position feedback, supporting sub-micron positioning accuracy when paired with a compatible amplifier.
- Robust IP65 Sealing: Protects against coolant splash, dust ingress, and industrial contaminants in machine tool environments.
- Proven Reliability: SANYO DENKI R Series motors are field-proven in millions of machine installations globally, with MTBF data supporting long service intervals.
- Direct Replacement Compatibility: Drop-in mechanical and electrical compatibility with existing SANYO DENKI R Series installations simplifies MRO replacement.
System Architecture & Signal Flow
The R720-012E18 E681000C30 operates within a standard closed-loop servo architecture:
- Command Input: Position/velocity/torque reference from PLC or motion controller (pulse train, analog ±10V, or fieldbus — depending on amplifier).
- Servo Amplifier: SANYO DENKI SANMOTION R Series amplifier processes command and drives motor phase currents via PWM.
- Motor (R720-012E18): Converts electrical energy to mechanical torque and rotation.
- Encoder (E681000C30): Feeds back actual position/speed data to the amplifier for real-time error correction.
- Load: Ball screw, rack-and-pinion, belt drive, or direct-coupled mechanism.
This architecture supports position loop bandwidths exceeding 1 kHz on compatible SANMOTION R amplifiers, enabling high-speed contouring and synchronization.
Sourcing & Quality Verification
- Source: Konmask.com procures SANYO DENKI components through established industrial distribution channels and verified surplus inventory networks.
- Inspection: All units undergo visual inspection, label verification (model/serial/date code), and connector integrity check prior to dispatch.
- Authenticity: We supply OEM-original units only. No remanufactured or counterfeit parts.
- Condition: New-in-box (NIB) or tested-used stock — condition specified at time of quotation.
- Documentation: Datasheet, wiring diagram, and test report available upon request.
- Warranty: 90-day functional warranty on all shipped units (terms apply).
Procurement Process
- Inquiry: Submit your RFQ via email to support@konmask.com or WhatsApp +0086 19859288691 with your required quantity and delivery timeline.
- Quotation: We respond within 1 business day with price, lead time, and stock condition details.
- Order Confirmation: Purchase order or proforma invoice issued. Payment via T/T, PayPal, or other agreed terms.
- Inspection & Packing: Unit inspected, photographed, and packed in anti-static + foam-lined carton.
- Shipping: DHL / FedEx / SF Express — tracking number provided within 24 hours of dispatch.
- After-Sales: Technical support available for installation and commissioning queries.
Technical FAQ
Q: What servo amplifier is compatible with the R720-012E18?
A: This motor is designed for use with SANYO DENKI SANMOTION R Series servo amplifiers. Confirm the amplifier model by matching the motor’s power rating and encoder interface type.
Q: What does the E681000C30 suffix indicate?
A: The suffix encodes the encoder specification and option configuration. Contact Konmask or refer to the SANYO DENKI R Series catalog for the full option code breakdown.
Q: Can this motor be used as a direct replacement for an existing R720-012E18 installation?
A: Yes, provided the encoder suffix matches. Verify the full model number including option code before ordering to ensure encoder compatibility with your existing amplifier.
Q: Do you provide a test report or inspection certificate?
A: Yes. A pre-shipment inspection report is available upon request. For new-in-box units, the original manufacturer’s label and date code serve as authenticity documentation.
Q: What is the lead time?
A: In-stock units ship within 1–3 business days. For sourced units, lead time is typically 5–15 business days depending on availability.
Q: Can you supply the matching SANMOTION R amplifier?
A: Yes. Konmask.com stocks a range of SANYO DENKI servo amplifiers. Contact us with your system requirements for a matched motor-amplifier quotation.
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Contact: support@konmask.com | +0086 19859288691
