MOTOX FD48B-LA80M4 Parallel Shaft Gearmotor
The iconic MOTOX gearmotor series was originally created and engineered by FLENDER. Following Siemens' acquisition of Flender, MOTOX was integrated into Siemens' drive portfolio under the 2KJ catalog line (2KJ1402 for FD48B). Subsequently, Siemens carved out its heavy-duty motors and gearmotors business under the INNOMOTICS brand. 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.
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. Cataloged under Siemens 2KJ order code 2KJ1402, the FD48B size delivers nominal output torques up to 450 Nm and is paired with 0.55 kW LA80M4 motors. Featuring high mechanical efficiency (94%), rigid cast iron housing construction, and high overhung load capacity, 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) ideal for crane hoists, monorail conveyors, agitators, mixers, and automated warehouse lines.
Technical Specifications
| Model / Part Number | FD48B-LA80M4 (Order Code: 2KJ1402-..DE13) |
|---|---|
| Brand Lineage | Flender → Siemens → Innomotics → Original OEM Factory Brand |
| Gear Unit Type | MOTOX FD Series (3-Stage Parallel Shaft Helical) |
| Catalog Frame Size | Size FD48B (Nominal torque capacity: 450 Nm) |
| Matched Motor Type & Power | LA80M4 / LA80ZMB4E (0.55 kW AC Squirrel-Cage Motor) |
| Output Speed / Ratio Range | i = 3.80 to 449.21 (Customizable ratios available) |
| Shaft & Mounting Options | Foot-mounted, Flange B5/B14, Solid Shaft, Hollow Shaft with Keyway/Shrink Disc/TorqLOC® |
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. 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) | 2KJ1300-.. to 2KJ1311-.. | Up to 34,000 Nm | LA63 to LG250 (0.12 kW - 45 kW) |
| MOTOX FD Series (3-Stage High Ratio) | 2KJ1400-.. to 2KJ1411-.. | Up to 34,000 Nm | LA63 to LG250 (0.12 kW - 45 kW) |
| Hollow Shaft Keyway (FDA / FZA) | 2KJ13..-Z A / 14..-Z A | Up to 34,000 Nm | Hollow Shaft Output with Keyway |
| Flange Executions (FDF / FZF) | 2KJ13..-Z F / 14..-Z F | Up to 34,000 Nm | B5 Flange Output Mounting |
| Hollow Shaft Shrink Disc (FAD / FZD) | 2KJ13..-Z D / 14..-Z D | Up to 34,000 Nm | Keyless Shrink Disc Connection |
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. 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) | Siemens / Innomotics | MOTOX FZ48B-LA80ZMB4E OEM Direct | 0.55 kW | Direct 1-to-1 flange & shaft match. Complete interchangeability. |
| 2KJ1402-..DE13 (FD48B) | Siemens / Innomotics | MOTOX FD48B-LA80M4 OEM Direct | 0.55 kW | Standard FD48B drive package. 100% drop-in replacement. |
| 2KJ1403-..EM13 (FD68B) | Siemens / Innomotics | MOTOX FD68B-LA90SB4E OEM Direct | 0.75 kW | Identical shaft centerline height & foot mounting bolt pattern. |
| 2KJ1404-..FM13 (FD88B) | Siemens / Innomotics | MOTOX FD88B-LA100ZLP4E OEM Direct | 1.5 kW | Heavy conveyor drive. Preserves existing torque arm / flange. |
| 2KJ1405-..HG13 (FD108B) | Siemens / Innomotics | MOTOX FD108B-LA132SP4E OEM Direct | 4.0 kW | Maximum torque capacity for F series. 100% exact replacement. |
Expert Selection & Retrofit Engineering Notes
When retrofitting an existing installation featuring older Flender MOTOX or Siemens 2KJ1402 gearmotors, sourcing directly through authentic OEM channels ensures complete dimensional interchangeability, original gear tooth geometry, and zero modification costs. 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.
Core Benchmark Model Standard Configurations
- FD28-LA71B4 (0.18 kW)
- FD38B-LA71S4 (0.25 kW)
- FD38B-LA71M4 (0.37 kW)
- FD48B-LA80M4 (0.55 kW)
- FD48B-LA90S4 (0.75 kW)
- FD68B-LA90S4 (0.75 kW)
- FD68B-LA100L4 (1.5 kW)
- FD88B-LA100L4 (1.5 kW)
- FD88B-LA112M4 (3.0 kW)
- FD108B-LA132S4 (4.0 kW)
- FD128B-LA160M4 (7.5 kW)
- FZ48B-LA80M4 (0.55 kW)
- FDA48B-LA80M4 (Hollow Shaft)
- FDF48B-LA80M4 (Flange Shaft)
- FAD48B-LA80M4 (Shrink Disc)
- FDS48B-LA80M4 (Solid Foot)
- FAAD48B Torque Arm Package
- 2KJ1402-7DE13 (Siemens Code)
- 2KJ1403-7EM13 (Siemens Code)
- 2KJ1404-7FM13 (Siemens Code)
