A ribbon blender mixes dry powders in a U-shaped trough with a double helical ribbon. It is the standard machine for wall putty, tile adhesive and dry distemper. Here you will find how it works, how full to run it and how long to blend.
A powder ribbon blender is also called a ribbon mixer or dry powder blender.
We help you choose the machine that fits your product, batch size and plant, with specification, commissioning guidance and operator training. IPCS (Indian Paints Consulting Service) supports ribbon blender buyers with application advice, installation support and technical assistance after delivery.
Ribbon Blender overview
The outer ribbon pushes powder one way along the trough and the inner ribbon pushes it back the other way. The action is convective, so the powder is moved in bulk and not fluidised. Because the outer ribbons run close to the wall, there is little leftover powder at the end of a batch.
How full and how long
- Fill the trough to about 70 to 80 percent of total volume, and never above 80 percent
- Below about 60 percent the inner ribbon starts to lose contact with the powder
- Mixing usually takes 3 to 5 minutes. Times of 10 to 15 minutes are common in practice, and a longer time can mean the mix is not set up well
- Medium blenders of 500 to 2,000 litres turn at about 50 rpm and draw about 3 to 5 kW per cubic metre
Paint production applications for Ribbon Blender
It is the main blender for free-flowing dry mixes.
white cement, filler and polymer mixes
Ribbon blender vs double cone blender: the ribbon blender mixes by moving the powder in bulk and handles larger batches. A double cone blender tumbles gently and suits free-flowing material and fragile particles.
Technical specifications to review for Ribbon Blender
Ask every supplier for the same details.
| Parameter | What to specify | Guide |
|---|---|---|
| Working volume | Net powder in litres or kg | Fill 70 to 80 percent of total volume |
| Power | Motor rating | Roughly 3 to 5 kW per cubic metre for medium blenders |
| Discharge | Flap valve, round valve or bomb door | A bomb door empties in under 30 seconds with little residue |
| Liquid spray | If oil or liquid is added | Spray lines are an option |
| Access | Hinged lid with interlocked grate | Safe cleaning and inspection |
| Construction | Stainless steel or mild steel | Choose by product and cleaning need |
Capacity and configuration choices for Ribbon Blender
Ribbon blender batch capacity follows the working volume and the bulk density of your mix. Sizes run from a few hundred litres to several cubic metres. Plant-scale wall putty lines are reported to blend for 15 to 30 minutes, so confirm the time on your own trial. Share your daily output and bulk density, and we choose the size.
Installation & support for Ribbon Blender
Routine care
- Check the ribbon-to-wall clearance and the end seals
- Change gearbox oil on a schedule
- Clean the trough and the discharge door when changing products
- Check the interlock on the access lid
- Log batch times
What we confirm before we quote
We confirm product and powder bulk density, batch size and batches per shift, whether liquid addition is needed and packing method after the blender before we quote. Foundation, utility and commissioning guidance follows the confirmed size, and operators are trained on your own product.
Frequently Asked Questions
What is a ribbon blender used for?
A ribbon blender mixes dry powders. In paint plants it is used for wall putty, tile adhesive, dry mix mortar and dry distemper.
How full should a ribbon blender be?
Fill it to about 70 to 80 percent of total volume and never above 80 percent. Below about 60 percent the inner ribbon can lose contact with the powder.
What is the ribbon blender batch capacity?
It depends on the working volume and the bulk density of your mix. Sizes run from a few hundred litres to several cubic metres.
How long does a ribbon blender take to mix?
Usually 3 to 5 minutes, though 10 to 15 minutes is common in practice. Confirm the time with a uniformity check on your own mix.
Ribbon blender vs double cone blender: which is better?
The ribbon blender handles larger batches and is the usual choice for putty and adhesive. The double cone blender tumbles gently and suits free-flowing or fragile material.
Can I use a ribbon blender for wall putty?
Yes. A ribbon blender for wall putty is the standard machine. Clean it fully when you change formulas.
Discuss Ribbon Blender requirements with the machine team
Send us your product list, batch size and country for a ribbon blender quotation. Please include: product and powder bulk density, batch size and batches per shift, whether liquid addition is needed and packing method after the blender.