EP-E Series Right Angle Planetary Gearbox
The EP-307 Series right angle planetary gearbox is engineered as a replacement for Bonfiglioli 307L and 307R series units — covering models 307L1, 307L2, 307L3, 307L4, 307R2, 307R3, and 307R4. The gearbox pairs precision planetary gearing with a spiral bevel right-angle stage, changing the output shaft direction by 90 degrees in a compact, sealed housing rated to IP65. Reduction stages span from single (L1/R2) to four-stage (L4/R4) configurations, providing ratios from approximately 3.55 all the way up to 3,550 — making it one of the most flexible 90 degree planetary gearbox platforms available for mobile and industrial applications. It is particularly well suited for operations in challenging environments such as construction machinery, agricultural drives, conveyor systems, and industrial automation. The housing is pressure die-cast from high-grade aluminium alloy for the mid-range frame sizes and nodular cast iron for the heavier duty variants, keeping weight down while maintaining exceptional structural rigidity.
1. Technical Specifications & Performance Parameters
| Specifications of Planetary Gearbox | |
| Torque range | 1000-450.000 Nm |
| Transmissible mechanical power | up to 540 kW |
| Gear ratios | 3.4-9.000 |
| Gear unit versions | inline |
| Output configuration | 1) Foot and flange mounted 2) Output shaft: solid with key, splined, splined hollow 3) Hollow with shrink disc |
| Input configurations | 1) Flanged axial piston hydraulic motors 2) Hydraulic orbit motors 3) IEC and NEMA motor adaptors 4) Solid input shaft |
| Hydraulic brake | hydraulically released parking brake |
| Electric brake | DC and AC type |
| Tipo | Model variants | Torque Nm |
| 300L | 300L1, 300L2, 300L3, 300L4 | 1000 |
| 301L | 301L1, 301L2, 301L3, 301L4 | 1750 |
| 303L | 303L1, 303L2, 303L3, 303L4 | 2500 |
| 305L | 305L1, 305L2, 305L3, 305L4 | 5000 |
| 306L | 306L1, 306L2, 306L3, 306L4 | 8500 |
| 307L | 307L1, 307L2, 307L3, 307L4 | 12500 |
| 309L | 309L1, 309L2, 309L3, 309L4 | 18000 |
| 310L | 310L1, 310L2, 310L3, 310L4 | 25000 |
| 311L | 311L1, 311L2, 311L3, 311L4 | 40000 |
| 313L | 313L1, 313L2, 313L3, 313L4 | 55000 |
| 315L | 315L1, 315L2, 315L3, 315L4 | 100000 |
| 316L | 316L1, 316L2, 316L3, 316L4 | 135000 |
| 317L | 317L1, 317L2, 317L3, 317L4 | 170000 |
| 318L | 318L1, 318L2, 318L3, 318L4 | 250000 |
| 319L | 319L1, 319L2, 319L3, 319L4 | 350000 |
| 321L | 321L1, 321L2, 321L3, 321L4 | 500000 |
2. Five Key Advantages of the EP-E Series
01 — Full Dimensional Compatibility
Every mounting flange, shaft diameter, key seat, and torque-arm hole matches Bonfiglioli 307L/R geometry exactly. No adapter plates, no machining, no guesswork. You receive a unit that installs in the same pocket as the original, right out of the crate. This reduces downtime during planned or emergency maintenance across any Colombian industrial facility or mobile fleet.
02 — High Torque Density
The EP-E Series is a high torque right angle gearbox designed to handle the demanding load cycles typical of construction, mining conveyor, and winch drive applications. The distributed planet gear arrangement spreads load across multiple contact points simultaneously, delivering output torques that rival units significantly larger in physical footprint, making this series the right choice for right angle planetary gearbox industrial Colombia projects.
03 — Low Backlash Performance
The spiral bevel right-angle stage and precision-lapped planetary gears combine to achieve backlash figures that satisfy the positioning requirements of right angle planetary gearbox for CNC Colombia installations and light robotics applications. A low backlash right angle planetary gearbox Colombia is essential when accurate repeatability is non-negotiable, and this series delivers without requiring premium servo-grade pricing.
04 — Multi-Stage Ratio Range
From a compact one-stage (L1/R2) to a four-stage (L4/R4) unit, the EP-E series covers output ratios from roughly 3.55:1 up to 3,550:1, opening a single product family to an exceptionally wide variety of speed-reduction tasks. System designers can specify the same product line across multiple machine variants, simplifying the spare-parts inventory and unifying supplier relationships for procurement teams across Bogotá, Medellín, and Cali.
05 — IP65 Sealed, Maintenance-Friendly Design
Multi-lip shaft seals and a sealed housing rated to IP65 keep internal grease clean in washdown, dusty, and wet environments. A dedicated oil-fill and drain port with a magnetic plug enables straightforward lubrication service without full disassembly. This detail significantly reduces right angle planetary gearbox maintenance Colombia costs over the service life, keeping operating teams productive rather than waiting on workshop time.
3. How Does a Right Angle Planetary Gearbox Work?
The planetary stage, which answers the question of how does a planetary gearbox work, consists of three core components: a centrally located sun gear connected to the bevel output shaft, a set of planet gears that orbit around the sun, and a fixed ring gear whose internal teeth mesh with the planet gears. As the sun gear spins, the planet gears roll around its circumference while simultaneously walking around the inside of the ring gear. The planet carrier, which holds the planet gears on their bearing pins, rotates as a result of this motion and drives the output shaft. Because the load is shared across three or more planet gears, each individual contact point handles only a fraction of the total torque, which is why planetary gearboxes achieve such a high torque-to-weight ratio compared with conventional spur or worm reducers.
In multi-stage variants (L2/L3/L4 and R3/R4), multiple planet sets are cascaded in series. The output shaft of the first planetary stage becomes the input shaft of the second, and so on. This stacking is how planetary gear reverse direction can also be achieved in certain ratio configurations, and why the EP-E Series can span ratios from single-digit values to several thousand-to-one, all within the same external envelope. Right angle gear drive configurations like the EP-E Series are preferred where mounting space or machine architecture prevents motor and load from sharing a common axis, solving real-world layout problems without sacrificing efficiency.
4. Materials & Build Quality
The material selection in the EP-E Series reflects the demands of heavy-duty mobile and industrial service. The bevel gears and all planetary gears are manufactured from carburised and case-hardened alloy steel (typically 20CrMo or equivalent), giving the tooth flanks a surface hardness of HRC 58–62 while preserving a tough, ductile core. This combination resists both surface fatigue pitting and sudden overload fracture — two failure modes commonly encountered on construction sites and in conveyor drives where shock loading is routine. All gears are finish-ground after heat treatment to ensure dimensional accuracy and smooth meshing action, which keeps operating noise low and contributes to the extended service intervals the series is known for.
Planet carriers in the lighter variants are precision die-cast from A380 aluminium alloy, reducing rotating mass and improving heat dissipation. For the larger and heavier-duty frame sizes, the carrier switches to nodular cast iron (GGG-40), which delivers the stiffness and damping characteristics needed when output torques push into the multi-kilonewton-metre range. Bearings are deep-groove ball bearings on the input stage and heavy-duty tapered roller bearings on the output shaft, sized for the combined radial and axial loads typical of wheel drives, track drives, and winch applications. Shaft seals use a multi-lip contact design in standard Nitrile (NBR) rubber, with fluorocarbon (FKM / Viton) available for applications involving aggressive fluids or elevated continuous temperatures.
5. Application Scenarios
The EP-E Series right angle planetary gearbox serves a broad range of industries where dependable torque transmission in a compact 90-degree format is required. Below are the primary application areas our customers reference when specifying this series.
Construction Machinery
Compact excavators, skid-steer loaders, and mini-dumpers rely on wheel drives and swing drives that must tolerate severe shock loading. The EP-E Series's multi-stage planetary architecture handles these peaks without fatigue damage, making it a standard choice for construction fleets operating in Colombia's diverse terrain.
Industrial Conveyor Systems
Belt conveyors in mining, cement, and port operations need reliable right-angle drive solutions. The EP-E Series installs cleanly at the head or tail pulley shaft, delivering high continuous torque while its IP65 seal keeps dust and moisture out — a critical requirement for aggregate and cement handling environments across Medellín and the Cauca Valley.
Agricultural Machinery
PTO-driven implements, spreaders, and mixer augers benefit from the EP-E Series's high gear ratio availability and rugged sealed housing. Operating in the field means mud, crop debris, and temperature swings — conditions the multi-lip seal and grease-filled design handles routinely. It pairs naturally with PTO shaft drivelines for a complete power transmission solution.
Winch & Hoist Drives
Crane winches, marine hoists, and cable-pulling machines need holding torque and fail-safe braking provisions. The high reduction ratios available with the EP-E Series (up to L4 and R4 four-stage configurations) allow relatively small input motors to generate the sustained output torques that winch mechanisms demand, reducing motor sizing costs while improving reliability.
Automation & Robotics
For light automation lines and articulated robot joints where a right angle planetary gearbox for robotics Colombia is needed, the L1 and R2 single-stage variants offer compact dimensions and low backlash suited to positioning applications. These are increasingly specified by Colombian systems integrators building production cells for the food, packaging, and electronics sectors.
CNC Machine Tools
Rotary table drives, tool changers, and axis feed drives in CNC machining centres require both positional accuracy and torque stiffness. When fitted with a servo motor adapter and used as a right angle planetary gearbox for servo motor Colombia combination, the EP-E Series L1 delivers the low-backlash performance these applications demand at a total cost of ownership well below specialist servo-grade alternatives.
6. Regulatory Compliance & Industry Standards
Specifying mechanical power transmission equipment for industrial use involves navigating a layered set of regulations at the national and international level. The EP-E Series is designed and manufactured in alignment with the following standards, which are directly relevant to buyers in Colombia and other markets.
Colombia — ICONTEC & RETIE: Industrial machinery installed in Colombian facilities must comply with the Reglamento Técnico de Instalaciones Eléctricas (RETIE), which governs the integration of electromechanical drive systems including gear motors. The NTC (Normas Técnicas Colombianas) framework, administered by ICONTEC, incorporates by reference ISO machinery standards. The EP-E Series is aligned with NTC/ISO safety requirements for mechanical power transmission components, and the manufacturing facility holds ISO 9001 quality management certification.
European Union — Machinery Directive 2006/42/EC & CE Marking: Although Colombian law does not legally require CE marking, many procurement specifications in Colombia's oil-and-gas, mining, and automotive sectors demand CE-ready equipment as a quality baseline. The EP-E Series design conforms to the essential health and safety requirements of the EU Machinery Directive. For customers who require formal Declaration of Conformity documentation, this can be provided upon request.
AGMA (American Gear Manufacturers Association): Gear geometry and material quality in the EP-E Series are calculated against AGMA 2001 (Fundamental Rating Factors for Involute Spur and Helical Gear Teeth) and AGMA 6123 (Design Manual for Enclosed Epicyclic Gear Drives). These standards govern gear tooth load ratings, safety factors, and lubrication recommendations and are widely referenced by North American and Latin American engineering teams during machine design reviews.
ISO 6336 & ISO 9283: Gear strength calculations follow ISO 6336 (Calculation of Load Capacity of Spur and Helical Gears), while robot and positioning drive performance is characterised in line with ISO 9283 guidance on manipulator performance criteria. These international references give purchasers independent verification that the design margins are calculated transparently and conservatively.
Environmental Regulations — RoHS & REACH: All metallic components and lubricants supplied with the EP-E Series are compliant with RoHS 2011/65/EU and REACH Regulation (EC) No 1907/2006, ensuring the unit does not introduce restricted substances to the supply chain. This matters for Colombian manufacturers exporting finished goods to European customers who must demonstrate material compliance across their entire bill of materials.
7. About Us
We are a specialist right angle planetary gearbox manufacturer in Colombia and power transmission solutions with more than decades of focused experience in the design, production, and technical support of gear drive systems. Our product range spans precision servo-grade planetary gearboxes for automation and robotics through to heavy-duty mobile drive units for construction, mining, and agricultural equipment. The EP-E Series is one of the flagship products in our industrial planetary gearbox line, backed by a manufacturing facility certified to ISO 9001 and equipped with CNC gear grinding, coordinate measuring machines, and full fatigue-test rigs. We supply directly to OEM machine builders, MRO distributors, and systems integrators across Latin America — including Colombia, Peru, Chile, and Brazil — as well as to customers in North America, Europe, and Southeast Asia.
Our engineering team is available to support gear selection, load calculations, motor compatibility checks, and dimensional drawings for any application. We maintain stock of the most popular EP-E Series configurations for same-week dispatch, with full custom configurations available on lead times quoted at the time of order. If you are looking for a reliable right angle planetary gearbox supplier Colombia or need to source a right angle planetary gearbox replacement Colombia urgently, contact our technical sales team for a prompt response.
Workshop
8. Related Products & One-Stop Supply
Beyond the EP-E Series planetary gearbox itself, we supply a full range of compatible drive components for complete driveline solutions. Sourcing your gearbox, PTO shaft, and motor from a single supplier eliminates interface compatibility issues, simplifies logistics, and gives your engineering team a single point of contact for technical support. Below are two complementary product lines that integrate directly with the EP-E Series.
PTO Shaft
Matched PTO shafts in a range of cross-section profiles and lengths for direct integration with the EP-E Series output hub. Precision-balanced and grease-sealed for long service life. Ideal for agricultural machinery and mobile industrial equipment. View our full PTO Shaft product range and request dimensions for your application.
Compatible Motors & Gearboxes
We also supply IEC-frame electric motors and a broader range of agricultural and industrial gearboxes that pair seamlessly with the EP-E Series. Browse our gearbox catalogue for additional ratio and frame-size options, or enquire about motor + gearbox pre-matched assemblies to simplify your procurement process.
Frequently Asked Questions
Q1. Is the EP-E Series truly compatible with all Bonfiglioli 307 variants, and where can I get a direct right angle planetary gearbox replacement in Colombia quickly?
Yes — the EP-E Series is dimensionally interchangeable with Bonfiglioli 307L1, 307L2, 307L3, 307L4, 307R2, 307R3, and 307R4. Bolt circle, shaft diameter, spline specification, and torque-arm hole positions are matched to OEM tolerances. For urgent right angle planetary gearbox replacement Colombia needs, contact our sales team for stock availability and express dispatch options. We typically maintain buffer stock of the most common stage configurations.
Q2. How do I identify the right EP-E Series configuration when the original Bonfiglioli 307 model number is damaged or missing from the gearbox nameplate?
If the nameplate is illegible, the most reliable identification method is to measure: (1) the output shaft diameter and length, (2) the flange bolt circle diameter and number of bolts, (3) the overall housing length, and (4) the motor input flange dimensions. Cross-referencing these four measurements against the Bonfiglioli 307 dimensional drawings — which map directly to the EP-E Series drawing set — will identify the correct model in most cases. Our technical support team can assist with this identification process remotely if you can share photographs and measurements by email.
Q3. What is the best right angle planetary gearbox for automation applications in Colombia's packaging and food sectors?
For automation and packaging, the EP-E Series L1 (single-stage) is the preferred choice because it offers the lowest backlash in the series and the most compact axial length. When combined with a servo motor adapter flange, it functions as a right angle planetary gearbox for servo motor Colombia combination that meets the positioning accuracy and cycle-rate requirements of pick-and-place, rotary indexing, and dosing applications. Food-grade lubricant and stainless output shaft options are available.
Q4. Where can I buy a 90 degree planetary gearbox in Bogotá or Medellín, and how does the EP-E Series compare with locally stocked alternatives?
The EP-E Series is available through our regional distribution partners and can also be ordered directly with delivery to Bogotá, Medellín, Cali, and other major Colombian cities. Compared to locally stocked alternatives, the EP-E Series offers full Bonfiglioli 307 dimensional interchangeability, ISO 9001 manufacturing provenance, and a competitive total cost of ownership — particularly important for large-quantity MRO procurement where consistent unit quality reduces rework time in the field.
Q5. How does right angle planetary gearbox maintenance work in the field, and what is the recommended service interval for units operating in Colombian industrial environments?
For grease-lubricated units, the EP-E Series is filled at the factory with synthetic grease rated for the expected service life at normal operating temperatures. A visual seal inspection every 1,000 operating hours is recommended, with grease replenishment at approximately 5,000 hours or three years, whichever comes first. In high-temperature or high-duty-cycle environments typical of Colombian cement or mining applications, reduce the interval to 2,500 hours. The magnetic drain plug captures ferrous wear particles; checking the plug at each service interval gives an early warning of abnormal internal wear.
Q6. Which industries in Colombia most commonly use a high precision right angle planetary gearbox, and what are the key selection criteria?
The primary industries in Colombia are cement and aggregate processing, coal and gold mining, port logistics and conveyor handling, sugarcane milling in the Valle del Cauca, and the growing automation and electronics manufacturing sector. Key selection criteria across all these industries are: rated output torque with adequate service factor, number of reduction stages (ratio), shaft and flange configuration for motor and load interface, IP protection level for the ambient environment, and availability of spare units or rebuild services within Colombia.
Q7. How does a right angle gearbox with a planetary stage differ from a standard worm gearbox for industrial use in Colombia?
A worm gearbox also achieves a 90-degree shaft angle but relies on sliding contact between the worm and wheel, which generates significant heat and limits efficiency to roughly 50–90% depending on ratio. A right angle planetary gearbox uses a bevel input to change the axis direction and then a planetary stage for reduction — both based on rolling tooth contact — so efficiency stays above 90% even at high ratios. The planetary stage also handles shock loads far better than a worm gear and does not self-lock unintentionally, which matters for conveyor back-drive scenarios.
Q8. Can the EP-E Series right angle planetary gearbox be used for robotics applications in Colombia, and what backlash figures can I expect?
The L1 (single-stage) configuration of the EP-E Series is suitable for light robotics and articulated arm applications where a right angle planetary gearbox for robotics Colombia is needed. Backlash figures for the standard industrial version are typically in the 15–25 arcminute range; for tighter requirements, our precision-ground variant achieves figures below 10 arcminutes, which satisfies most light-duty pick-and-place and collaborative robot applications. For ultra-precision robotic joints requiring sub-3-arcminute backlash, a dedicated servo-grade gearbox would be more appropriate.
Q9. What certifications and standards apply when importing a right angle planetary gearbox into Colombia, and how does the EP-E Series comply?
Colombia does not currently impose specific mandatory type-approval for industrial gearboxes as standalone components, but the machinery they are installed in must comply with applicable ICONTEC (NTC) safety standards and, where relevant, RETIE. The EP-E Series is manufactured under ISO 9001 quality management and is designed to comply with ISO 6336 load-capacity standards and the CE Machinery Directive, satisfying most Colombian procurement specifications that reference international standards. Material certificates, test reports, and dimensional inspection records are available as part of the documentation package on request.
Editor: PXY
