Northern Tool Log Splitters (Buyer’s Guide)
Choose a Northern Tool splitter by matching its rated force, log-length limit, cycle time, and power source to the wood and workload you actually have. Check the manual for the exact model and year before buying. Set it up on firm, level ground, follow its fuel and hydraulic-fluid requirements, and keep clear of the splitting zone and high-pressure leaks.
A stalled ram or a round that will not split can turn a wood day into a frustrating one. The answer is not always a higher-tonnage machine: log diameter, species, knots, and the splitter’s hydraulic system all matter. I compare the work first, then the model’s published specifications, so I am less likely to pay for unused capacity or buy a machine that struggles with the woodpile.
Northern Tool’s listings may cover different brands and model years. Specs and service needs can vary, so treat the product page as a starting point and confirm details in the manual for the exact SKU.
How to choose a Northern Tool log splitter
A log splitter uses hydraulic force to drive a ram and wedge through wood. To choose one, match its rated force and maximum log size to the rounds you plan to split, then consider cycle time, power source, and workload. A higher ton rating alone does not guarantee that every round will split.
Start by measuring a few typical rounds, including the largest ones you expect to handle. Note their length and diameter, and consider whether they are straight-grained, knotty, or twisted. Hard, tangled wood can be tougher to split than a straight round of similar size.
Match capacity to your wood and workload
A ton rating describes the splitter’s rated force. It is not a promise that the machine will split every piece of wood at or below a certain diameter. Knots and grain direction can make a round bind or resist splitting.
For frequent work with large hardwood rounds, compare rated force, cylinder stroke, cycle time, and engine duty rating. For occasional, smaller rounds, a lower-capacity machine may suit the task. In either case, confirm the model’s maximum log length and diameter; do not assume those limits from its ton rating.
Compare the power source and operating details
Gas models need the fuel specified in their engine manual. Many splitter engines are four-stroke and use straight gasoline, not premixed two-cycle fuel. Do not apply a trimmer’s or chainsaw’s oil ratio to a splitter. Electric or battery-powered models have different power and operating requirements, so check the exact product details and manual.
| What to compare | Why it matters | What to verify |
|---|---|---|
| Rated splitting force | Indicates the machine’s stated pushing force | Rating and how the manufacturer describes it |
| Maximum log length and diameter | Sets the size limits for the workpiece | Exact model manual and product listing |
| Cylinder stroke | Describes how far the ram travels | Published stroke and whether it suits your log length |
| Cycle time | Indicates how quickly the ram completes a cycle | Test conditions; time changes with load and oil temperature |
| Engine and fuel | Determines starting and engine care | Engine type, required fuel, oil, and duty rating |
| Hydraulic pump and fluid | Affects hydraulic operation and service | Flow and relief pressure if published, plus fluid type and capacity |
Hydraulic pressure and piston area are related to cylinder force, but published values may not be available for every model. Do not adjust a relief valve to increase force. Compare figures only when they come from the exact model’s documentation, and note that cycle-time claims may use specific test conditions.
Setup and safe splitting
Safe use starts with the right site and a machine that is stable, inspected, and operated as its manual directs. Keep people away from the ram, wedge, and path a log or split piece could take. Wear eye and face protection, hearing protection, suitable gloves for handling wood, and safety footwear.
Prepare the machine and work area
Choose firm, level ground with room to place and remove logs without stepping into the splitting zone. Stabilize the splitter as directed; use chocks or other restraints if the manual requires them. For a towable unit, follow the manufacturer’s hitch, lighting, towing-speed, and road-use rules.
Before starting, inspect hoses, fittings, guards, fasteners, tires, and the hydraulic-fluid level according to the manual. Look for damage or leaks. Keep long hair tied back and avoid loose clothing. Operate controls only from the designated position, and keep hands away from the ram and wedge.
Start, split, and stop in order
- Start according to the manual. Use only the specified fuel on gasoline models. Warm the hydraulic system as directed, especially in cold weather.
- Place one stable round on the beam or table. Set it squarely and clear your hands before using the control.
- Split with the grain where practical. Do not use the ram to move a shifting log, pry wood, or handle pieces beyond the model’s limits.
- Stop if the round moves, binds, or starts to eject. Do not hold it in place by hand while cycling the ram.
- Shut down and inspect. Follow the manual, let hot parts cool, and check for damage or leaks. Clear debris without reaching into pinch points. Relieve hydraulic pressure only as instructed.
Two planning examples
These examples are buying scenarios, not reports of specific customer machines. I use them to show how the same ton rating can lead to different choices when log size and workload change.
- Occasional firewood: A homeowner splitting short, modest-diameter rounds a few times a season can focus on the actual log limits, storage needs, and starting method. Paying for a larger machine may not add value if its capacity will go unused.
- Regular hardwood work: Someone processing large, knotty rounds often should compare force, stroke, cycle time, and engine duty rating together. They should also check the maximum log dimensions and make sure the work area can safely handle the machine and logs.
The practical next step is to list your usual and largest rounds before comparing Northern Tool listings. That turns a vague “How many tons?” question into a model-by-model check.
Maintenance and seasonal storage
Maintenance depends on the exact splitter and engine, not chainsaw settings. Use the model’s service schedule for hydraulic fluid, filters, hoses, engine oil, air filter, spark plug, and fuel. A chainsaw’s chain pitch, bar oil, sharpening angles, and two-cycle mix do not apply to a log splitter.
Check the hydraulic-fluid level and condition, filters, hoses, fittings, cylinder rod, and beam at the intervals in the manual. Use the specified fluid and replacement parts. Do not mix hydraulic fluids unless the manufacturer says it is allowed, and do not change the relief-valve or engine-governor settings to seek more force or speed.
Maintain the engine using its own instructions. Confirm the correct oil grade and level, air-filter service, spark-plug specification, and fuel requirement. For seasonal storage, follow the engine maker’s directions on stabilizer or draining; requirements vary. Store fuel in an approved container away from ignition sources.
Before putting the splitter away, clean the beam and work surfaces, check for corrosion or damage, and protect the hydraulic cylinder as directed. Follow instructions for fluid checks and battery disconnection or charging on electric-start or battery units. Repair leaks before the next use, and do not store a machine with an unresolved hydraulic leak.
Treat hydraulic leaks as an emergency risk
High-pressure fluid can pass through skin from a tiny pinhole leak. Never use your hand to look for a leak; use cardboard or another safe method from a distance. Shut down and depressurize only as the manual directs. If fluid may have entered the skin, get emergency medical care at once, even if the wound looks small.
Buying checklist and common questions
This checklist covers the main purchase and use decisions: confirm the exact model’s limits, compare its capacity with your wood, and plan for safe setup and service. The answers below address common questions about ton ratings, fuel, hydraulic systems, and maintenance.
Before checkout, verify the SKU and model year against its manual. Confirm log limits, force rating, cycle time, engine type, fuel, and hydraulic-fluid type and capacity. Also check whether the product’s included equipment and service schedule fit your needs. Do not rely on a different model’s specifications, even if it shares a brand name.
Frequently asked questions
How many tons do I need in a log splitter?
There is no single ton rating for every woodpile. Match rated force to the species, diameter, grain, knots, and workload, and stay within the model’s log-size limits.
Does a higher ton rating split every log?
No. Knots, twisted grain, and log condition affect splitting. A rating is not a guarantee that every round within a stated size will split.
Can I use two-cycle fuel in a log splitter?
Only if the exact engine manual calls for it. Many splitter engines are four-stroke and use straight gasoline. Never assume a chainsaw or trimmer fuel mix is suitable.
How do I compare cycle times?
Check the published time for the exact model and its test conditions. Hydraulic oil temperature, engine speed, and load can change actual cycle time.
Can I increase the relief pressure for more splitting force?
No. Do not adjust the relief valve beyond the manufacturer’s specification. Follow the manual and use a machine suited to the work.
What hydraulic fluid should I use?
Use the type and capacity specified in the exact splitter manual. Do not mix fluids unless the manufacturer explicitly allows it.
Can I hold a log steady while the ram moves?
No. Place a stable round with hands clear before actuating the control. Stop if it shifts, binds, or begins to eject.
How should I check for a hydraulic leak?
Never feel along a hose or fitting with your hand. Inspect from a safe distance, using cardboard or another safe method as appropriate, and follow the manual for shutdown and depressurizing.
Do log splitters need chainsaw sharpening or bar-oil service?
No. Those are chainsaw tasks. Maintain the splitter’s hydraulic system and engine according to their respective manuals.
What should I do if hydraulic fluid may have entered my skin?
Seek emergency medical care immediately. A small-looking puncture can be a high-pressure injection injury and needs urgent attention.
(This article was written by one of our staff writers, Harrison Croft. Visit our Meet the Team page.)
