Contattore,interruttore automatico,inverter solare,contatore elettrico,batterie solari
| Component | Code | Descrizione |
| Series ID | SA47 | Series S helical-worm gear unit, size 47, A indicates hollow shaft output |
| Motor Type | DRN | Three-phase asynchronous motor; DR = standard motor, N = non-brake |
| Motor Specification | 80M4 | Frame size 80, M = medium frame length, 4 = 4-pole (1500 rpm / 50 Hz) |
| Marca | SEW | SEW‑EURODRIVE, a leading German manufacturer of drive technology |
- Key Technical Data ⚙️
| Articolo | Standard Value (50 Hz) | Note |
| Motor Power | 0.75 kW | IE3 premium efficiency |
| Input Speed | 1440–1500 rpm | Standard speed for 4-pole motor |
| Ratio Range | 5.31–179.86 | Comune: 20.33, 38.23, ecc. |
| Output Speed | 38–71 rpm | Varies with gear ratio |
| Rated Output Torque | 89–152 Nm | Varies with ratio and configuration |
| Massimo. Output Torque | 110–180 Nm | Short-time overload (ca. 2.5 × rated) |
| Classe di protezione | IP54 | Dust and water protected, adatto per ambienti industriali |
| Insulation Class | Class B (130°C) | Good thermal resistance |
| Montaggio | Foot-mounted (M1A/M2B) | Standard industrial mounting positions |
| Lubrication | Lifetime lubrication | Mineral oil CLP 680, oil volume 0.4 l |
| Peso | 25–27 kg | Slightly varies by configuration |
- Caratteristiche strutturali & Advantages 🛡️
- Helical-worm composite drive: More than 30% higher efficiency than pure worm gear units, with low noise (≤75 dB).
- High-strength aluminum housing: Lightweight, excellent heat dissipation, ideal for space-limited installations.
- Progettazione modulare: Easy replacement of motor, brake, encoder and other components for convenient maintenance.
- Safe and reliable: Overload and overheating protection, operating temperature range −20°C to +40°C.
- High energy efficiency: IE3 motor meets top international efficiency standards, reducing long-term operating costs.
- Typical Applications 📌
Logistics & conveying: Sorting lines, belts, elevators requiring low-speed, high-precision drive
Packaging machinery: Filling, labeling, cartoning machines needing stable torque
Food & beverage: Hygienic design, washdown-compatible, for auxiliary production line drives
Textile machinery: Light load, frequent start/stop, suitable for web tension control
Automation equipment: Rotary tables, corner transfer units, positioning mechanisms
- Series Model Comparison 🆚
| Modello | Motor Power | Ratio | Output Torque | Application |
| SA47‑DRN80M4 | 0.75 kW | 20.33 / 38.23 | 89–152 Nm | General light‑duty drive |
| SA47‑DRN90S4 | 1.1 kW | 14–100 | 120–200 Nm | Medium load, higher torque required |
| SA47‑DRN90L4 | 1.5 kW | 14–100 | 180–250 Nm | Heavy‑duty continuous operation |
| SA47‑DRE80M4 | 0.75 kW | 14–100 | 89–152 Nm | With brake for emergency stop |
| SA47/T DRN80M4 | 0.75 kW | 20.33 | 89 Nm | Special mounting position (M1A) |
- Replacement & Compatibility 💡
6.1 SEW Direct Replacements
SA47-DRE80M4: With electromagnetic brake, for applications requiring rapid stopping
SAZ47-DRN80M4: With B14 flange, compatible with servo motor connections
S47-DRN80M4: Solid shaft version, fully interchangeable mounting dimensions
6.2 Chinese Brand Equivalents (dimensionally compatible)
Huilide SA47DRE80M4: Same structure as SEW, ca. 70% of original price
Shanghai Yiteng S47 Series: Manufactured to SEW dimensions, fully interchangeable
Other alternatives: Naibao, Wesaidi, ecc., with matching mounting interfaces and drive parameters
6.3 Upgrade Options
Power upgrade: SA47-DRN90S4 (1.1 kW) or SA47-DRN90L4 (1.5 kW)
Efficiency upgrade: Switch to SA47-DRNE80M4 (IE4 super-premium motor), ca. 10% energy saving
- Selection & Purchasing Notes ⚠️
- Confirm mounting type: Hollow shaft (SA) or solid shaft (S), mounting position (M1A/M2B, ecc.)
- Match gear ratio: Calculate precisely based on required output speed (i = input speed / output speed)
- Consider service factor: S1 for continuous duty, S3–S10 for intermittent duty; recommended service factor ≥1.25
- Optional features: Specify brake (DRE), encoder, flange connection, ecc., when ordering
- Certification requirements: FDA for food industry, ATEX for explosive atmospheres
- Maintenance Recommendations 🛠️
- Ispezione regolare: Check oil level and temperature every 6 months to ensure proper lubrication
- Oil change interval: Under harsh conditions (high temperature, polvere), replace lubricant every 2 anni
- Precauzioni: Avoid overload to prevent motor overheating; ensure good ventilation to extend service life
SEW Series S Helical-Worm Gear Units: Modello completo & Order Number Guide
- Core Naming Rules 🔍
SEW Series S models follow the format:
[Configuration][Size]-[Motor Code]-[Options]
Order numbers are 18-digit numeric codes in the format: XX.XXXXXXXXXX.XXXX.XX.XX, containing full technical parameters.
- Complete Model Overview 📑
2.1 Basic Configurations (Output & Montaggio)
| Code | Descrizione | Available Sizes (37–97) |
| S | Solid shaft, foot-mounted | S37, S47, S57, S67, S77, S87, S97 |
| SA | Hollow shaft, foot-mounted | SA37, SA47, SA57, SA67, SA77, SA87, SA97 |
| SF | Solid shaft, B5 flange-mounted | SF37, SF47, SF57, SF67, SF77, SF87, SF97 |
| SAF | Hollow shaft, B5 flange-mounted | SAF37, SAF47, SAF57, SAF67, SAF77, SAF87, SAF97 |
| SAT | Hollow shaft, torque arm | SAT37, SAT47, SAT57, SAT67, SAT77, SAT87, SAT97 |
| SAZ | Hollow shaft, B14 small flange | SAZ37, SAZ47, SAZ57, SAZ67, SAZ77, SAZ87, SAZ97 |
| SH | Hollow shaft with shrink disk, foot-mounted | SH37, SH47, SH57, SH67, SH77, SH87, SH97 |
| SHZ | Hollow shaft with shrink disk, B14 flange | SHZ37, SHZ47, SHZ57, SHZ67, SHZ77, SHZ87, SHZ97 |
| SS | Double output shaft, foot-mounted | SS37, SS47, SS57, SS67, SS77, SS87, SS97 |
| SAS | Hollow + solid shaft, foot-mounted | SAS37, SAS47, SAS57, SAS67, SAS77, SAS87, SAS97 |
2.2 Size & Power Range (Standard / 7p Power Series)
| Size | Standard Max Torque | 7p Series Max Torque | Motor Power Range |
| 37 / 37p | 92 Nm | 105 Nm | 0.18–1.5 kW |
| 47 / 47p | 170 Nm | 220 Nm | 0.18–2.2 kW |
| 57 / 57p | 340 Nm | 450 Nm | 0.37–3.0 kW |
| 67 / 67p | 690 Nm | 900 Nm | 0.37–5.5 kW |
| 77 / 77p | 1320 Nm | 1700 Nm | 0.75–11 kW |
| 87 / 87p | 2280 Nm | 3000 Nm | 1.5–18.5 kW |
| 97 / 97p | 4000 Nm | 4300 Nm | 0.37–45 kW |
2.3 Motor Types (Efficiency Classes)
| Motor Code | Efficienza | Poli | Caratteristiche |
| DRS | IE1 | 2/4/6 | Standard efficiency, basic version |
| DR2S | IE1 | 4 | Special design for specific applications |
| DRE | IE2 | 2/4/6 | High efficiency, with electromagnetic brake |
| DRN | IE3 | 2/4/6 | Premium efficiency, non-brake (e.g. SA47‑DRN80M4) |
| DRP | IE3 | 4 | Premium efficiency, special design |
| DRU | IE4 | 2/4/6 | Super‑premium efficiency, energy-saving |
| DR..J | IE2/IE3 | 4 | With LSP safety brake |
2.4 Motor Frame Sizes & Lengths
Common frames: 63MS4, 71S4, 71M4, 80S4, 80M4, 90S4, 90L4, 100L4, 112M4, 132S4, 132M4
M = medium length, L = long length.
- Typical Complete Model Examples 💡
| Modello | Configuration | Size | Motor Type | Motor Spec | Efficienza | Caratteristiche |
| SA47‑DRN80M4 | Hollow shaft, foot-mounted | 47 | DRN | 80M4 (0.75 kW) | IE3 | Non-brake, premium efficiency |
| S57‑DRE90L4 | Solid shaft, foot-mounted | 57 | DRE | 90L4 (1.5 kW) | IE2 | With electromagnetic brake |
| SAF67‑DRU100L4 | Hollow shaft, B5 flange | 67 | DRU | 100L4 (2.2 kW) | IE4 | Super‑premium efficiency, flange-mounted |
| SAT77p‑DRN132S4 | Hollow shaft, torque arm | 77p | DRN | 132S4 (5.5 kW) | IE3 | 7p high-torque series |
| SHZ97‑DRE225M4 | Hollow shaft with shrink disk, B14 flange | 97 | DRE | 225M4 (45 kW) | IE2 | Large size, with brake |
- Order Number Structure 🔢
SEW standard order number: 18-digit code XX.XXXXXXXXXX.XXXX.XX.XX
| Section | Digits | Descrizione | Esempio |
| 1 | 2 | Voltage class | 25 = 400V / 50Hz 3-phase |
| 2 | 10 | Product serial number | 114696803 |
| 3 | 4 | Configuration code | 0002 = standard configuration |
| 4 | 2 | Ratio code | 11 = 20.33, 12 = 38.23, ecc. |
| 5 | 2 | Mounting code | 34 = M1A foot-mounted |
Example Order Number
Typical order number for SA47-DRN80M4: 25.0114696803.0002.11.34
400V / 50Hz 3-phase supply
Standard SA47 unit + DRN80M4 motor
Ratio 20.33
M1A foot-mounted
- Common Gear Ratios (Selected)
| Size | Common Ratios |
| 37/47 | 5.31, 7.56, 10.27, 14.01, 20.33, 38.23, 56.67, 79.86 |
| 57/67 | 10.27, 14.01, 20.33, 38.23, 56.67, 79.86, 115.56, 179.86 |
| 77/87/97 | 14.01, 20.33, 38.23, 56.67, 79.86, 115.56, 179.86, 288.00 |
- Ordering Notes
- Complete model required: Configuration + size + motor + ratio + mounting
- 7p series marking: Append “p” to size (per esempio., S47p-DRN90L4)
- Options: Specify encoder, special lubrication, explosion-proof certification, ecc., when ordering
- Order number lookup: Available via SEW website or authorized distributor
- Documentazione: Full technical datasheet available from SEW upon order
