Standard Design（Customizable）:
WLDH-500
| Spec | WLDH-100 | WLDH-300 | WLDH-500 | WLDH-1000 | WLDH-1500 | WLDH-2000 | WLDH-3000 | WLDH-4000 | WLDH-6000 | WLDH-8000 | WLDH-10000 |
| Total volume(L) | 100 | 300 | 500 | 1000 | 1500 | 2000 | 3000 | 4000 | 6000 | 8000 | 10000 |
| Mixed amount/batch (L) | 30-60 | 90-180 | 150-300 | 400-600 | 450-900 | 600-1200 | 900-1800 | 1200-2400 | 1800-3600 | 2400-4800 | 3000-6000 |
| Power (Kw) | 1.5-4 | 3-5.5 | 4-11 | 7.5-15 | 11-18.5 | 15-22 | 18.5-30 | 22-37 | 37-55 | 37-55 | 45-75 |
| Rotating speed (RPM) | 65 | 65 | 65 | 46 | 38 | 33 | 28 | 28 | 28 | 24 | 21 |
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 | LABORATORY TEST In order to be able to demonstrate the advantages and modes of action of our industrial mixing machine with your products, our fully equipped modern laboratory/technical center is at your disposal. |
PROFESSIONAL ENGINEER The experienced team of engineers is specialized in the R&D and design of mixers, grinding equipment, and plastic recycling machine. Karvil explores new technical points constantly to create perfect solutions for customers. |  |
 | DIRECT FACTORY Karvil factory has a series of strict standard system to control the procurement of raw materials, manufacturing process, in-process inspection, and product inspection, so as to ensure the quality of our products.
|
Q: 500L is the total volume, but how much can I actually mix?
A: You can mix about 300 Liters per batch. The 500L is the physical tank size, but effective mixing needs headspace for the powder to move. So, we recommend a 60% fill rate for the best results.
Q: Why use Carbon Steel for milk powder? Isn't Stainless Steel better?
A: Usually, yes. But since this project is for waste recycling (not human consumption), carbon steel is much more cost-effective. Don't worry about residue—we finely polished the inside just like we do with stainless steel, so the material flows smoothly.
Q: How does the "Safety Grid" actually work?
A: It’s a smart interlock system we designed for Nestlé. Basically:
Lid Open + Grid Locked: The mixer runs (so you can inspect the process).
Lid Open + Grid Removed: The motor cuts off instantly.
It gives you visibility without compromising operator safety.
Q: Can I change the mixing speed?
A: Yes. We installed a VFD (Variable Frequency Drive). You can dial the speed anywhere from 0 to 62 rpm. If you're running fragile powder that breaks easily, just turn the speed down.
Q: Does it come with the conveyors shown in the picture?
A: Yes, it’s a complete set. It includes the 1.7m feeding screw and the 1.4m discharge screw. Everything is pre-fitted to connect via the DN150 valve, so it's ready to go dust-free right out of the box.
Q: What if I need to replace the motor or bearings later?
A: You won't have trouble finding parts. We use standard Siemens Beide motors and NSK bearings. These are global brands, so you can easily get local support or replacements anywhere in the world.
| Spec | WLDH-100 | WLDH-300 | WLDH-500 | WLDH-1000 | WLDH-1500 | WLDH-2000 | WLDH-3000 | WLDH-4000 | WLDH-6000 | WLDH-8000 | WLDH-10000 |
| Total volume(L) | 100 | 300 | 500 | 1000 | 1500 | 2000 | 3000 | 4000 | 6000 | 8000 | 10000 |
| Mixed amount/batch (L) | 30-60 | 90-180 | 150-300 | 400-600 | 450-900 | 600-1200 | 900-1800 | 1200-2400 | 1800-3600 | 2400-4800 | 3000-6000 |
| Power (Kw) | 1.5-4 | 3-5.5 | 4-11 | 7.5-15 | 11-18.5 | 15-22 | 18.5-30 | 22-37 | 37-55 | 37-55 | 45-75 |
| Rotating speed (RPM) | 65 | 65 | 65 | 46 | 38 | 33 | 28 | 28 | 28 | 24 | 21 |
| | | |
| | | |
| LABORATORY TEST In order to be able to demonstrate the advantages and modes of action of our industrial mixing machine with your products, our fully equipped modern laboratory/technical center is at your disposal. |
PROFESSIONAL ENGINEER The experienced team of engineers is specialized in the R&D and design of mixers, grinding equipment, and plastic recycling machine. Karvil explores new technical points constantly to create perfect solutions for customers. | |
| DIRECT FACTORY Karvil factory has a series of strict standard system to control the procurement of raw materials, manufacturing process, in-process inspection, and product inspection, so as to ensure the quality of our products.
|
Q: 500L is the total volume, but how much can I actually mix?
A: You can mix about 300 Liters per batch. The 500L is the physical tank size, but effective mixing needs headspace for the powder to move. So, we recommend a 60% fill rate for the best results.
Q: Why use Carbon Steel for milk powder? Isn't Stainless Steel better?
A: Usually, yes. But since this project is for waste recycling (not human consumption), carbon steel is much more cost-effective. Don't worry about residue—we finely polished the inside just like we do with stainless steel, so the material flows smoothly.
Q: How does the "Safety Grid" actually work?
A: It’s a smart interlock system we designed for Nestlé. Basically:
Lid Open + Grid Locked: The mixer runs (so you can inspect the process).
Lid Open + Grid Removed: The motor cuts off instantly.
It gives you visibility without compromising operator safety.
Q: Can I change the mixing speed?
A: Yes. We installed a VFD (Variable Frequency Drive). You can dial the speed anywhere from 0 to 62 rpm. If you're running fragile powder that breaks easily, just turn the speed down.
Q: Does it come with the conveyors shown in the picture?
A: Yes, it’s a complete set. It includes the 1.7m feeding screw and the 1.4m discharge screw. Everything is pre-fitted to connect via the DN150 valve, so it's ready to go dust-free right out of the box.
Q: What if I need to replace the motor or bearings later?
A: You won't have trouble finding parts. We use standard Siemens Beide motors and NSK bearings. These are global brands, so you can easily get local support or replacements anywhere in the world.
