Description
Product details
| ModelNO. | EP16 | Ratio | 3:1 |
|---|---|---|---|
| InputSpeed | 540r/min | InputPower | 14.7kW(20HP) |
| OutputTorque | 756Nm | InputShaft | Type X |
| MountingBolt | 4×M8 on 134.5 mm | OutputFlange | 105 mm EQS |
| InputShaftHole | 19.5 mm | OutputShaft | 5/16″UNC & 3/8″UNC Threads |
| OverallLength | 160 mm | OverallWidth | 190 mm |
| OverallHeight | 222 mm | Comments | For Post Hole Digger Applications |
What Is a Post Hole Digger Gearbox? Why EP16 Stands Out
A post hole digger gearbox is the heart of the system, linking your tractor’s PTO shaft to the auger bit. It steps down high-speed, low-torque power from the PTO into low-speed, high-torque rotation, letting the auger chew through soil, clay, or even compacted ground with ease. Built as a true agricultural gearbox, the EP16 shines in durability and efficiency, especially under long, tough field sessions. Its housing is precision-cast, and every internal gear is heat-treated high-strength alloy steel to cut wear and keep power delivery rock-solid.
Where the EP16 Really Excels
This agricultural gearbox is a go-to in:fence-post holes on cropland, tree-planting pits in orchards,vineyard trellis holes, windbreak rows, landscaping projects,tractor 3-point post hole diggers, standalone earth drills,foundation pilings, light-pole footings,with its universal output flange and bolt pattern, the EP16 swaps in for roughly 80% of similar farm gearbox units on the market—ideal for upgrades or quick repairs.
Core Strengths of the EP16 Agricultural Gearbox
- Built Tough – Choose high-strength ductile iron or aircraft-grade aluminum alloy housing, finished with anti-corrosion paint to shrug off field mud and moisture.
- Serious Torque – 756 Nm peak torque punches through hardpan and minimizes stalling.
- Quiet Operation – Precision helical gears plus premium grease keep gear noise almost inaudible.
- Easy Swap – At just 18 kg and with clear mounting diagrams, one person can replace it in about 15 minutes.
- Long Haul – Double-lip seals and a breather valve stop leaks under heat and pressure; expect 3,000+ hours in normal use.
Maintenance Tips
- Check the sight glass before every job—keep oil at 2/3 full; use 85W-140 heavy-duty gear oil.
- Full oil change after the first 100–150 hours, then every 500 hours or once a year.
- When pressure-washing, keep the stream away from the breather valve to avoid water ingress.
- Inspect the input spline seasonally; tighten the dust-cap bolts if any play shows up.
Stick to these basics and your EP16 agricultural gearbox will stay on the job season after season.
How to Pick the Right Gearbox for Your Tractor
- PTO Speed Check – 99% of mid-size tractors run 540 RPM; the EP16 is a direct match.
- Hole Specs – For bits >400 mm or depths >1.5 m, 756 Nm gives you breathing room.
- Soil Type – Sandy or loamy soils allow lighter boxes; red clay or gravel demands a heavy-duty farm gearbox like the EP16.
- Fitment – Ø105 mm EQS output flange + 4×M8 bolts is the industry standard—no mods needed.
Why Choose Us as Your Agricultural Transmission Partner
We’ve specialized in agricultural gearbox and PTO drivelines for 15 years, controlling every step from raw casting to final gear grinding. 10% of every batch undergoes 1,000-hour fatigue testing—pass rate steady at 99.8%. Custom non-standard flanges, extended input shafts, or special seals built to your drawings. One dedicated account manager from quote to after-sales—no middlemen, no runaround.
FAQ
Can the EP16 gearbox fit different types of post hole diggers?
Yes, the EP16 gearbox has a universal Ø105 mm EQS output flange and 4×M8 bolt pattern, allowing it to replace most 3:1 gearboxes used on standard tractor-mounted post hole diggers and auger drives. It can be installed without modification in about 15 minutes.
What kind of lubricant should I use for the EP16 gearbox?
Use high-quality 85W-140 heavy-duty gear oil. Keep the oil level at two-thirds of the sight glass before operation. Change oil after the first 100–150 hours and then every 500 hours or once per year to ensure long service life.
How much torque and power does the EP16 gearbox handle?
The gearbox transmits up to 756 Nm of output torque at a 3:1 reduction ratio, working efficiently with 540 RPM PTO input and around 14.7 kW (20 HP) of input power. This makes it suitable for most medium-size tractors and augers up to 400 mm diameter.
Can I order custom versions or OEM configurations?
Yes. Custom options include extended input shafts, special seals, non-standard flanges, and private-label branding. OEM and ODM services are available, with full technical support and endurance testing before shipment.
Customer Reviews
⭐⭐⭐⭐⭐ David Miller, Farm Equipment Technician, United States
We’ve installed the EP16 gearbox on two of our tractor diggers — smooth, quiet, and powerful. It bites through tough clay like butter. Easy swap too, no alignment headaches. I’m impressed with how solid the casing feels — definitely built for real farm work.
⭐⭐⭐⭐⭐ Sofia Hernandez, Agricultural Contractor, Mexico
This gearbox is a real workhorse. We run it daily for fencing and planting jobs, and it’s holding up great. Hardly any noise, no leaks so far. I like that it doesn’t need much maintenance — just top up the oil and go.
⭐⭐⭐⭐⭐ Tom Becker, Equipment Supplier, Germany
Our customers love the EP16 — strong torque, clean drilling, and it fits most PTO augers without modification. The finish is nice and professional, not the cheap paint you sometimes see. It’s quickly becoming one of our best-selling models.
⭐⭐⭐⭐⭐ Liam O’Connor, Farm Owner, Australia
Honestly didn’t expect a gearbox this size to handle our rocky ground, but the EP16 didn’t even flinch. Runs smooth, no weird noises, and swapping it in took under 20 minutes. A little heavy, but that’s what “tough” feels like. Would buy again, no question.
