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HKM-6399059 Automatic Self-Cleaning Cat Litter Box with 65L Interior Pull-Out Waste Drawer and Four Support Legs in White
HKM-6399059
65L Drum, Self-Cleaning
The HKM-6399059 is an automatic cat litter box built as a rounded drum on four support legs, finished in white. A round opening at the front gives the cat a clear way in, and the drum turns to sift the litter after each use and drop the clumps into a drawer in the base. The interior holds about 65 litres, which suits cats of different sizes, and the body is moulded from plastic. The waste drawer pulls out from under the drum, and the whole unit weighs about 30.9 pounds.
Key Features
Six details that shape how the HKM-6399059 is built and how it works.
A Drum That Sifts the Litter
The drum turns after each use and sifts the litter through a screen, so the clumps separate from the clean litter instead of being left in place. That is the work that replaces scooping by hand, and it runs on its own between visits.
A Drawer in the Base
The clumps drop into a drawer set into the base of the unit, which pulls out from under the drum. The drawer sits low and wide, so it holds a run of days rather than a single visit.
About 65 Litres Inside
The interior holds roughly 65 litres, which gives a cat room to turn and to dig rather than standing in a tight box. The size is what makes the unit work for a larger cat as well as a smaller one.
A Round Front Opening
A round opening at the front of the drum gives the cat a clear way in and out, and the rim sits at a height that suits a cat stepping up from the floor. The opening faces forward, so the unit can be set against a wall.
Four Support Legs
Four moulded legs lift the drum off the floor, which keeps the base drawer clear and lets air move under the unit. The legs also let the box be set level on a floor that is not quite true.
A Rounded Corner Shape
The body is cut as a rounded quadrate rather than a plain box, so it sits into a corner without a sharp edge standing out into the room. The shell is moulded from plastic and wipes down with a damp cloth.
Overview
A white drum on four legs with a sifting cycle and a base drawer.
The HKM-6399059 is an automatic cat litter box built as a rounded drum on four support legs. A round opening at the front gives the cat a clear way in, and the drum turns to sift the litter after a visit so the clumps separate from the clean litter. The clumps drop into a drawer set into the base, which pulls out from under the drum. The interior holds about 65 litres, which suits cats of different sizes, and the shell is moulded from plastic in white. The unit weighs about 30.9 pounds, stands on four legs that keep the base clear of the floor, and the rounded shape lets it sit into a corner without an edge standing out into the room.
The Drum Does the Scooping
A sifting drum over a base drawer that pulls out.

The drum turns after a visit and sifts the litter so the clumps separate and drop into the drawer set into the base. The drawer pulls out from under the unit, and the interior holds about 65 litres for cats of different sizes.
Full Specifications
What the drum, the drawer and the legs are made of.
Cycle, Drawer And Setup
How the drum, the base drawer and the legs work together.
The HKM-6399059 is an automatic litter box built as a drum on four legs. After a cat leaves the drum, the unit turns it so the litter passes through a screen and the clumps separate from the clean litter, then tips them into the drawer set into the base. The drawer pulls out from under the drum, so emptying it is a matter of sliding it clear rather than lifting the whole unit. The interior holds about 65 litres, which gives a cat room to turn and dig, and the round front opening sits low enough to step up to. Four moulded legs keep the base clear of the floor.
What’s in the Box
Everything needed to set the litter box up.
1 x Litter Box Drum
The white drum with the round front opening
1 x Base Unit
The base that carries the pull-out waste drawer
1 x Leg Set
The four support legs that lift the drum clear
1 x Litter Scoop
The scoop for topping up the litter
1 x User Manual
Setup, cycle and care guidance sheets
1 x Warranty Card
Coverage details for the HKM-6399059
Why Choose the HKM-6399059
Six further reasons cat owners move to the HKM-6399059.
No Scooping Between Visits
The drum sifts the litter on its own after a visit, so the box does not wait for someone to come home with a scoop. That is what keeps a household from finding a full box at the end of a working day.
Room to Turn and Dig
About 65 litres of interior space lets a cat turn around and dig without standing in a tight box, which is what a larger cat needs. A cat that cannot turn in a box is the one that starts going elsewhere.
Drawer Instead of a Bag
The waste drops into a drawer in the base rather than into a bag on the side, so emptying is a matter of sliding the drawer out. The drawer sits low and wide, which holds a run of days rather than a single visit.
Sits Into a Corner
The body is rounded rather than square, so it goes into a corner without a sharp edge standing out into the room. The front opening faces the room, so the unit can be pushed back against a wall.
Level on Any Floor
Four moulded legs lift the drum and let it be set level on a floor that is not quite true. They also keep the base drawer clear of the floor, so it slides out without dragging.
Wipes Down Easily
The shell is moulded plastic, so it takes a damp cloth without staining and does not hold odour the way an unlined wooden box can. The drawer and the drum both wipe out between litter changes.
Frequently Asked Questions
Quick answers about the HKM-6399059 litter box.
How does the self-cleaning cycle work?
After a cat leaves the drum, the unit turns it so the litter passes through a screen inside. The clean litter falls back into the drum and the clumps are carried to the opening, where they drop into the drawer set into the base. The cycle is the reason the box does not need scooping between visits. Let the cat meet the unit switched off for the first day, so the drum is familiar before it starts to turn.
How big is the box?
The interior holds about 65 litres, which gives a cat room to turn around and dig rather than standing in a tight space. That suits most cats, including a larger one, though a very large breed may still want a bigger box. Measure the space you have before the unit arrives, because the drum and the base together take more floor area than a plain litter tray.
How often do I empty the drawer?
The drawer in the base holds a run of days rather than a single visit, so emptying it is a weekly job for one cat and more frequent in a busy household. Slide the drawer out, tip the clumps into a bag and wipe the drawer with a damp cloth before it goes back. Check the drawer more often in the first week, so you learn how fast your cat fills it.
What litter should I use?
Use a clumping litter that passes through the screen inside the drum, because the cycle works by separating clumps from clean litter. A very light or a non-clumping litter can fall straight through the screen and end up in the drawer with the waste. Fill the drum to the line marked inside rather than to the top, since an over-filled drum spills litter as it turns.
Is it safe for a small cat?
The unit is built for cats of different sizes, and the round front opening sits at a height a cat can step up to from the floor. Watch a smaller cat use it for the first few days, because a very young or a very old cat may need the drum switched off until it is used to the box. Always let a cat meet the unit switched off first, so the motion does not come as a surprise.
Does it need much space?
The unit stands on its own base and needs a hand-width of space behind it for the drum to work and for air to move. The rounded shape lets it go into a corner, but the front opening has to face out so the cat has a clear way in. Leave the floor in front of the opening clear as well, so a cat can step up without a mat or a bowl in the way.
Quick Troubleshooting
Common HKM-6399059 points and what to check first.
The cat will not use it
A cat that avoids a new box is often reacting to the motion rather than the box itself. Switch the drum off for a few days and leave the litter in place, so the cat can use it as a plain tray first. Put a little of the old litter on top of the new, because the smell is what tells a cat that the box is its own. Then switch the cycle back on once the box is being used. Switch the drum off for a few days so the cat meets a plain tray first.
The drum does not turn
Check that the unit sits level on its four legs and that nothing is pressing against the drum. A drum that is loaded above the line inside can bind as it turns, so take some litter out and try again. Check too that the drawer is pushed fully home, because a drawer sitting proud can stop the cycle from starting. Take some litter out if the drum binds as it turns.
The drawer fills too fast
A drawer that fills quickly usually means the litter is too light or not clumping, so the clean litter follows the waste into the base. Switch to a clumping litter that the screen can catch, and fill the drum to the marked line rather than the top. In a household with more than one cat, expect to empty the drawer more often than the weekly figure for a single cat. Expect to empty the drawer more often with more than one cat.
The unit smells
Odour usually starts in the drawer rather than the drum, so empty it and wipe it out with a damp cloth more often in warm weather. Check the base as well, because litter dust collects under the drum over time. An unlined plastic shell holds far less odour than a wooden box, but a drawer left standing for a fortnight will still make itself known. Wipe the base as well, because dust collects under the drum.
Litter is scattered outside
Litter thrown out of the opening is usually a sign that the drum is over-filled, so take the level down to the marked line. Check that the unit is level, because a box that rocks will throw more litter as the drum turns. A mat in front of the opening catches what a cat carries out on its paws, which keeps the scatter away from the rest of the floor. A box that rocks throws more litter as the drum turns.
The cycle starts while the cat is inside
A cycle that begins with a cat in the drum means the sensor has not seen the cat leave, so check that the opening is not blocked and that the unit is level. Keep the drum switched off while a new or a nervous cat is getting used to the box. If the cycle keeps starting early once the box is in normal use, check the unit before leaving it running unattended. Check the sensor if the cycle starts while the cat is inside.
Service & Policies
Coverage that keeps working long after the box arrives.
Free Shipping on All Orders
Every order ships free. Handling time: 0-1 business days (Monday to Friday). Transit time: 2-5 business days (Monday to Friday). A tracking number is emailed as soon as the parcel leaves our warehouse.
180 Days Purchase Protection
Your purchase is protected for 180 days from the delivery date against manufacturing defects and damage in transit. If something arrives wrong, we make it right.
30 Days Money Back Guarantee
Not completely satisfied? Request a return within 30 days of delivery for a full refund. We keep the process simple and hassle-free.
24 Months Warranty Service
The product is covered by a 24-month warranty from the delivery date against manufacturing defects. Coverage includes parts and labor; normal-wear items are excluded.
Important Safety Notes
Read these notes before the first use of the HKM-6399059.
The HKM-6399059 is a mains-powered litter box with a drum that turns, so keep children and small pets away from the drum while the cycle is running. Set the unit on a level floor with the front opening clear and a hand-width of space behind it, and check that the power lead is not trapped under a leg. Switch the drum off while a new cat is getting used to the box, and always unplug the unit before you wipe out the drum or reach into the base. Use a clumping litter and fill only to the line marked inside, since an over-filled drum binds and spills. Empty the drawer often enough that waste never stands for long, and keep the unit indoors and away from water.
HKM-6399059 - automatic cat litter box in moulded white plastic, built as a rounded drum on four support legs, with a self-cleaning sifting cycle, a round front opening, an interior of about 65 litres, a pull-out waste drawer in the base and a weight of about 30.9 pounds. Made for small to large cats and set indoors. Read the manual before first use. Nothing here is safety certification advice.
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Every part warranted for two full years.
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Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
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Available 24 hours a day, 7 days a week