EP-310 Series Inline Planetary Gearbox 25kNm 150kW Replaces Bonfiglioli 310
EP-310 inline planetary gearbox replaces Bonfiglioli 310L1–310L4, 310R2–310R4. 25,000 Nm, 150 kW, ratios 3.8–2,500:1. ISO 9001, 100% load-tested. MOQ 1. Quote in 24h.
onfiguration images recommended
What Is the EP-310 Inline Planetary Gearbox?
The EP-310 is a modular planetary gear unit sitting within the broader 300-series industrial range at the 25,000 Nm rated torque class — one step below the 311 frame and directly above the 309 frame. At 150 kW rated mechanical power and a maximum input speed of 2,000 RPM, it covers mid-to-heavy industrial drive requirements where high torque density is needed within a compact housing.
Two output configurations serve different machine layout requirements: the 310L series (L1 through L4) delivers coaxial inline output with the motor and load on the same axis — suitable for conveyor drives, mixer drives, and winch drums. The 310R series (R2 through R4) adds a spiral bevel stage to redirect the output shaft 90° to the motor axis — required for wheel drives, luffing crane winches, and machinery where the output shaft must run perpendicular to the motor.
The suffix digit — L1 through L4, R2 through R4 — specifies the number of planetary reduction stages. Each additional stage multiplies the achievable gear ratio range within the same housing. A 310L1 covers lower ratios with fewer internal components; a 310L4 reaches up to 2,500:1 in the same physical housing. Our EP-310 series replaces all seven Bonfiglioli Trasmital 310 variants with confirmed dimensional equivalence and is also cross-referenced against equivalent units from Brevini Riduttori, Bosch Rexroth, Comer Industries, Reggiana Riduttori, Rossi, and Zollern.
EP-310 Inline Planetary Gearbox Technical Specifications
Dimensional drawings supplied on request. Confirm variant (L1–L4 / R2–R4) and gear ratio from your existing unit nameplate before ordering.
EP-310 Frame — Key Parameters
| Parameter | Value / Details |
|---|---|
| Frame Size | 310 |
| Rated Torque (10,000 h) | 25,000 Nm |
| Rated Power | 150 kW |
| Max Input Speed | 2,000 RPM |
| Ratio — Inline (L Series) | 3.8 : 1 – 2,500 : 1 |
| Ratio — Right Angle (R Series) | 40 : 1 – 900 : 1 |
| Worm-Combined Ratio | 400 : 1 – 9,000 : 1 |
| Stage Variants | L1 · L2 · L3 · L4 (inline) · R2 · R3 · R4 (right angle) |
| Output Mounting | Base mount & flange mount |
| Output Shaft Types | Keyed solid · Spline · Spline hollow · Hollow with shrink disc |
| Input Configurations | Flanged axial piston hydraulic · Track motor · IEC adaptor · NEMA adaptor · Solid shaft |
| Brake Options | Hydraulic parking brake (on request) · DC electric · AC electric |
| Quality Certification | ISO 9001:2015 · CE · RoHS · 100% Load Test Certificate |
| Shipping | Sea / Air / DHL · EXW, FOB, CFR, CIF · Port: Jiangmen, China |
Cross-Reference — Bonfiglioli Trasmital ↔ EP-310 Series Inline Planetary Gearbox
| Brand | L1 | L2 | L3 | L4 | R2 | R3 | R4 |
|---|---|---|---|---|---|---|---|
| Bonfiglioli | 310L1 | 310L2 | 310L3 | 310L4 | 310R2 | 310R3 | 310R4 |
| Our EP-310 | EP-310L1 | EP-310L2 | EP-310L3 | EP-310L4 | EP-310R2 | EP-310R3 | EP-310R4 |
We do not sell products from Bonfiglioli; this brand name is referenced for product selection convenience only and does not involve any infringement.
Why Engineers Specify the EP-310 Inline Planetary Gearbox
All six points backed by specification data — no unsupported claims.
The 310L (inline coaxial) and 310R (90° bevel output) variants share the same planetary housing, ring gear, and carrier assembly. Switching between output orientations without changing the structural frame simplifies fleet spare parts management and reduces inventory SKU count.
Inline variants reach 3.8:1–2,500:1; right angle variants 40:1–900:1; combined with an optional worm stage, ratios up to 9,000:1 are achievable within the same housing envelope. Stage count — encoded in the suffix (L1–L4, R2–R4) — is the only variable that changes to extend the ratio range.
Axial piston hydraulic motor, hydraulic track motor, IEC electric motor adaptor, NEMA electric motor adaptor, and solid input shaft — all available from the same product frame. Motor interface is specified at order without adaptor fabrication cost or delay.
Spring-applied, hydraulically or electrically released parking brake available on request. Engages automatically when power is removed — required for crane hoisting duty (FEM M5+), winch load holding, and mobile equipment grade parking. DC and AC electric brake options also available.
No-load run-in followed by full rated-torque bench test on every EP-310 unit before dispatch. Signed test certificate included in the shipping documentation as standard. Not batch-sampled — every unit individually tested.
Non-standard ratios, special shaft dimensions, and OEM-specific configurations are assembled from the standardised EP-310 component set — no new tooling cost, no extended lead time beyond standard production. OEM private label and drawing-based orders accepted.
Inline Planetary Gearbox Application Scenarios
The EP-310's 25,000 Nm rated torque covers the majority of mid-heavy industrial and mobile equipment drive applications.
Tower crane hoist winches, luffing boom drives, and jib winch drums in the 15,000–30,000 Nm torque band. The parking brake option satisfies FEM M5 crane duty classifications. Right angle (310R) variants suit luffing geometry where the motor must be positioned beside the rope drum.
Continuous-duty conveyor belt head drives, rotary mixer drives, and large agitator drives in chemical, food, and manufacturing plants. IEC electric motor input via standard adaptor ring. The inline (310L) configuration eliminates any shaft offset between motor and load.
Wheel drive units for site dumpers (8–18 t class) and concrete mixer trucks. Track drives for compact tracked platforms and mini crawler carriers in the 10–20 t range. Hydraulic axial piston motor input is standard for mobile equipment; parking brake option for grade-holding.
Rope drum drives for medium-class mining winches and conveyor take-up drives. The 310L inline coaxial output mounts directly to the rope drum face without a separate coupling shaft, reducing the drivetrain component count and shortening the installation footprint.
Clarifier rake arm drives and thickener scraper drives in municipal and industrial water treatment plants. Slow output speed (typically 0.01–1 RPM) combined with 25,000 Nm torque capacity is achieved through high-ratio multi-stage configurations within the 310L frame.
Anchor chain drives, deck mooring equipment, and small winch drives on coastal and inland vessels where deck space constrains the drive assembly dimensions. IP67 sealing available; spring-applied brake for failsafe load holding when hydraulic pressure is released.
Frequently Asked Questions
Verified Customer Reviews
"Ordered an EP-310L3 to replace a Bonfiglioli unit on a crane hoist drive. Sent the nameplate photo on Monday and had dimensional drawings confirmed Tuesday morning. Unit arrived in 10 days by air. Bolted straight on — no shimming or adaptor work needed. Inspector reviewed the test certificate without questions."
"Bought an EP-310R2 as a 310R2 drop-in. My plant manager asked where I sourced it. I said 'same performance, 38% less money.' He looked at the test certificate, said nothing, and walked away. I have since learned that silence is his highest form of praise. The gearbox has now run 1,600 hours without complaint — which also describes my manager."
"We've been running EP-310L4 units on a water treatment clarifier project across three facilities in Queensland. Ordered 12 units across two projects. All 12 test certificates were included in the shipping documentation on arrival. Zero installation issues, dimensions matched exactly, and the lead time on our third order was 6 days. That's the standard I expect — and it's what I got."
Frequently Ordered Together
The EP-310 is the torque conversion stage. These two products complete the drive system on both ends.
💡
Order as a system: Specifying the EP-310 gearbox, hydraulic motor, and parking brake together from one supplier means input flange, output shaft interface, and brake holding torque are all confirmed before manufacture. Contact [email protected] with your torque, motor type, and brake requirement — we'll quote the complete drive assembly.
Gearbox Manufacturer
HZPT is a comprehensive equipment manufacturer integrating the design, research and development, production and sales of wastewater treatment equipment.
Related Searches
inline planetary gearbox · 310 series planetary gearbox · Bonfiglioli 310L1 310L2 310L3 310L4 replacement · EP310 inline planetary gearbox 25000 Nm · Bonfiglioli 310 series alternative supplier · 310L series inline planetary gearbox OEM · 310R2 310R3 310R4 right angle gearbox replacement
