MOTOX FD48B-LA80M4 Parallel Shaft Gearmotor
The iconic MOTOX gearmotor series was originally created and engineered by FLENDER[cite: 20]. Following Siemens' acquisition of Flender, MOTOX was integrated into Siemens' drive portfolio under the 2KJ catalog line (2KJ1402 for FD48B)[cite: 20]. Subsequently, Siemens carved out its heavy-duty motors and gearmotors business under the INNOMOTICS brand[cite: 20]. Today, MOTOX products have transitioned back to the original manufacturing plants and authentic OEM supplier channels, ensuring 100% exact design continuity, mechanical interchangeability, and original quality standards[cite: 20].
The MOTOX FD48B-LA80M4 is a 3-stage parallel shaft helical gearmotor designed for narrow installation profiles where flat, space-saving drive layouts are required[cite: 20]. Cataloged under Siemens 2KJ order code 2KJ1402[cite: 20], the FD48B size delivers nominal output torques up to 450 Nm and is paired with 0.55 kW LA80M4 motors[cite: 20]. Featuring high mechanical efficiency (94%), rigid cast iron housing construction, and high overhung load capacity[cite: 20], MOTOX F series gearmotors are available in versatile configurations (foot FD48B, hollow shaft FDA48B, flange FDF48B, shrink disc FAD48B, and shaft-mounted torque arm FAAD48B)[cite: 20] ideal for crane hoists, monorail conveyors, agitators, mixers, and automated warehouse lines[cite: 20].
Technical Specifications
| Model / Part Number | FD48B-LA80M4 (Order Code: 2KJ1402-..DE13)[cite: 20] |
|---|---|
| Brand Lineage | Flender → Siemens → Innomotics → Original OEM Factory Brand[cite: 20] |
| Gear Unit Type | MOTOX FD Series (3-Stage Parallel Shaft Helical)[cite: 20] |
| Catalog Frame Size | Size FD48B (Nominal torque capacity: 450 Nm)[cite: 20] |
| Matched Motor Type & Power | LA80M4 / LA80ZMB4E (0.55 kW AC Squirrel-Cage Motor)[cite: 20] |
| Output Speed / Ratio Range | i = 3.80 to 449.21 (Customizable ratios available)[cite: 20] |
| Shaft & Mounting Options | Foot-mounted, Flange B5/B14, Solid Shaft, Hollow Shaft with Keyway/Shrink Disc/TorqLOC®[cite: 20] |
Documentation & Resources
MOTOX F Series Parallel Shaft Modular Architecture Matrix
Full-range modular configuration guide for Flender / Siemens / Innomotics MOTOX F series parallel shaft helical gearboxes[cite: 20]. Review supported frame sizes, 2KJ order code structure, and mounting forms:
| Gearbox Stage & Mounting Form | 2KJ Order Code Prefix | Max Torque Rating (Nm) | Matched Motor Frame Range |
|---|---|---|---|
| MOTOX FZ Series (2-Stage Compact)[cite: 20] | 2KJ1300-.. to 2KJ1311-..[cite: 20] | Up to 34,000 Nm[cite: 20] | LA63 to LG250 (0.12 kW - 45 kW)[cite: 20] |
| MOTOX FD Series (3-Stage High Ratio)[cite: 20] | 2KJ1400-.. to 2KJ1411-..[cite: 20] | Up to 34,000 Nm[cite: 20] | LA63 to LG250 (0.12 kW - 45 kW)[cite: 20] |
| Hollow Shaft Keyway (FDA / FZA)[cite: 20] | 2KJ13..-Z A / 14..-Z A[cite: 20] | Up to 34,000 Nm[cite: 20] | Hollow Shaft Output with Keyway[cite: 20] |
| Flange Executions (FDF / FZF)[cite: 20] | 2KJ13..-Z F / 14..-Z F[cite: 20] | Up to 34,000 Nm[cite: 20] | B5 Flange Output Mounting[cite: 20] |
| Hollow Shaft Shrink Disc (FAD / FZD)[cite: 20] | 2KJ13..-Z D / 14..-Z D[cite: 20] | Up to 34,000 Nm[cite: 20] | Keyless Shrink Disc Connection[cite: 20] |
MOTOX 2KJ Order Code & Brand Cross-Reference Guide
MOTOX parallel shaft gearmotors installed under Flender, Siemens 2KJ, or Innomotics nameplates can be seamlessly cross-referenced and supplied directly via authentic OEM factory channels[cite: 20]. Refer to the catalog code mapping below:
| Legacy / Current Nameplate Code | Brand Generation | Current OEM Equivalent Model | Rated Motor Power | Mechanical Compatibility & Retrofit Notes |
|---|---|---|---|---|
| 2KJ1302-..DE13 (FZ48B)[cite: 20] | Siemens / Innomotics[cite: 20] | MOTOX FZ48B-LA80ZMB4E OEM Direct[cite: 20] | 0.55 kW[cite: 20] | Direct 1-to-1 flange & shaft match. Complete interchangeability[cite: 20]. |
| 2KJ1402-..DE13 (FD48B)[cite: 20] | Siemens / Innomotics[cite: 20] | MOTOX FD48B-LA80M4 OEM Direct[cite: 20] | 0.55 kW[cite: 20] | Standard FD48B drive package. 100% drop-in replacement[cite: 20]. |
| 2KJ1403-..EM13 (FD68B)[cite: 20] | Siemens / Innomotics[cite: 20] | MOTOX FD68B-LA90SB4E OEM Direct[cite: 20] | 0.75 kW[cite: 20] | Identical shaft centerline height & foot mounting bolt pattern[cite: 20]. |
| 2KJ1404-..FM13 (FD88B)[cite: 20] | Siemens / Innomotics[cite: 20] | MOTOX FD88B-LA100ZLP4E OEM Direct[cite: 20] | 1.5 kW[cite: 20] | Heavy conveyor drive. Preserves existing torque arm / flange[cite: 20]. |
| 2KJ1405-..HG13 (FD108B)[cite: 20] | Siemens / Innomotics[cite: 20] | MOTOX FD108B-LA132SP4E OEM Direct[cite: 20] | 4.0 kW[cite: 20] | Maximum torque capacity for F series. 100% exact replacement[cite: 20]. |
Expert Selection & Retrofit Engineering Notes
When retrofitting an existing installation featuring older Flender MOTOX or Siemens 2KJ1402 gearmotors[cite: 20], sourcing directly through authentic OEM channels ensures complete dimensional interchangeability, original gear tooth geometry, and zero modification costs[cite: 20]. Simply send us your existing Siemens 2KJ order code or nameplate serial number, and our engineering team will provide a 100% compliant replacement specification and quotation[cite: 20].
Core Benchmark Model Standard Configurations
- FD28-LA71B4 (0.18 kW)[cite: 20]
- FD38B-LA71S4 (0.25 kW)[cite: 20]
- FD38B-LA71M4 (0.37 kW)[cite: 20]
- FD48B-LA80M4 (0.55 kW)[cite: 20]
- FD48B-LA90S4 (0.75 kW)[cite: 20]
- FD68B-LA90S4 (0.75 kW)[cite: 20]
- FD68B-LA100L4 (1.5 kW)[cite: 20]
- FD88B-LA100L4 (1.5 kW)[cite: 20]
- FD88B-LA112M4 (3.0 kW)[cite: 20]
- FD108B-LA132S4 (4.0 kW)[cite: 20]
- FD128B-LA160M4 (7.5 kW)[cite: 20]
- FZ48B-LA80M4 (0.55 kW)[cite: 20]
- FDA48B-LA80M4 (Hollow Shaft)[cite: 20]
- FDF48B-LA80M4 (Flange Shaft)[cite: 20]
- FAD48B-LA80M4 (Shrink Disc)[cite: 20]
- FDS48B-LA80M4 (Solid Foot)[cite: 20]
- FAAD48B Torque Arm Package[cite: 20]
- 2KJ1402-7DE13 (Siemens Code)[cite: 20]
- 2KJ1403-7EM13 (Siemens Code)[cite: 20]
- 2KJ1404-7FM13 (Siemens Code)[cite: 20]
