Anhui Tanjie International Trade Co., Ltée.
You've watched the floor go clean at 2 AM. Then the battery dies at 4.
That gap between "almost done" and "actually done" costs you more than you think. Missed product. Overtime pay. The slow erosion of a schedule you already fought to build.
Anhui Tanjie International Trade Co., Ltée. builds sweepers to close that gap.
## What "Long Working Time" Actually Means on the Floor
Most specs sheets say "8-hour runtime." Read the fine print and it means 8 hours under ideal conditions: flat ground, no debris load, moderate temperature. In a real warehouse at 15°C, with 40mm brushes and a half-tilt floor, you're looking at 5–6.
Tanjie's approach is different. They treat runtime as a system , not a battery number.
Cell architecture
LFP (lithium iron phosphate) packs, 48 V or 60 V configurations
Cycle life rated at 2,000+ full discharges
Thermal management that keeps output steady from 0 °C to 40 °C
Drive and recovery
Regenerative braking feeds 8–12 % back into the pack on every stop
Low-draw control board sips under 5 W at idle
Brush and sump sizing
Wider brush width (up to 1.8 m) means fewer passes, less total runtime consumed
Larger debris bin cuts the "empty-and-return" micro-stops that eat 15–20 min per hour
The result: 10–14 hours of real, loaded shift work. No mid-shift swap. No second machine waiting in the bay.
01. Why Tanjie, and Why Now
Think of it this way: a forklift that can't finish its last rack of the shift is just as useless as one that breaks at 6 PM. Sweepers are the same. You don't buy a mule and ask it to stop halfway up the hill.
Tanjie (the export arm of Anhui Tanjie Environmental Protection Technology Co., Ltd.) has been on this problem since the early 2010s. A few things separate them from the commodity crowd:
Full in-house R&D – they design the BMS, the motor controllers, and the hydraulic lift independently. No off-the-shelf "good enough" parts.
Modular serviceability – every battery pack, brush roll Long working time industrial sweeper , and filter is a bolt-on module. A mechanic replaces it in under 20 minutes. No disassembly of the whole chassis.
OEM/ODM flexibility – white-label housings, custom brush widths, EN or ISO certification packaging depending on your market.
For a logistics hub in Rotterdam or a plant cement in Ostrava, that modularity is the difference between a 4-hour downtime and a 4-hour interruption you handle over coffee.
02. The Numbers That Matter to Your P&L
Let's do the math together. A 12-hour shift, two sweepers on the commodity 8-hour battery:
Machine A sweeps 06:00–14:00. Swap. Sweep 14:00–22:00.
You need two batteries per machine, plus swap labor, plus a second operator or a longer shift.
With Tanjie's 14-hour LFP system:
One sweep, 05:00–19:00, with 5 hours of buffer for next morning's pre-shift run.
One battery. One operator. Zero swap stops.
Annual saving per machine (fuel, battery depreciation, labor, floor downtime): roughly €11,000–16,000 in a European wage context. Multiply by your fleet size. That's the number that gets the CFO to nod.
03. A Small Word on "Long"
There's a quiet trap in the industry: a longer shift tempts you to push one operator for 14 straight hours. Fatigue. Micro-errors. The sweeper becomes a liability, not an asset.
Tanjie's training guide (free with every unit) splits the 14-hour window into two 7-hour blocks with a 30-minute rest. The machine doesn't care. The person does. Design the shift around the human, let the sweeper's range be the enabler , not the demand .
The floor will be clean at 5 AM tomorrow whether you bought the long-shift sweeper or not. The only question is who pays for the gap in between.
You've already seen the 4 AM empty battery.
You don't have to see it again.
Anhui Tanjie International Trade Co., Ltée. – export division of Anhui Tanjie Environmental Protection Technology Co., Ltée. Request a spec sheet or schedule a video walk-through of the 60 V LFP unit: [inquire via official channel].
