HST PT-21 Type (Naked Tea Bag)
Example: Model PT-0.21.2 (multi-row cartoning)
General: PT-y.21
The proven PT-y.21 is the basic version of our double-chamber tea bag machines, which produces 150 to 175 non-heat-sealable double-chamber filter bags per minute.
The bag is supplied with a string and a hard tag, optional knotted or stapled:
PT-2.21 : With knotting technology on both sides, both on the tag side and on the bag side (i.e. y=2).
PT-1.21 : Only knotting on the bag side (i.e. y=1),
PT-0.21 : With standard food-grade aluminium staples (i.e. y=0).
With its two chambers, the double-chamber tea bag offers enough space to allow a quick infusion and the flow of the tea aroma. Up to 2.5 - 3.5 g of black, fruit or herbal tea can be packed in these tea bags, allowing for 30% more infusion compared to a single-chamber bag.
Bag Size Options: A | B
The following tea bag sizes are possible:
A : Larger bag size 64 x 44 mm.
Due to the larger volume, this is the best choice for packaging herbal and fruit teas.
B : Smaller bag size 60 x 40 mm.
This is the standard size for packaging black tea.
The machines cannot be converted to other bag sizes.
Packaging Options: PT-y.21. 0 | 1 | 2
The following packaging options are available:
PT-y.21.0 : Manual packaging machine (hand pack).
Where high flexibility is required or in countries where labor costs are lower, these manual packaging versions are very popular. These models are equipped with an automatic counter that counts, stacks and feeds the bags into an output channel. These stacked and pre-counted bags can then be manually removed and filled into pre-formed boxes or tins.
PT-y.21.1 : Single-row cartoner.
Pre-glued hinged lid boxes, adjustable between 15 and 30 bags.
Machines with automatic single-row cartoning are used by companies with a high degree of automation and with dedicated production lines for a specific box format.
PT-y.21.2 : Multi-row cartoning machine.
Flat blank boxes for up to 100 tea bags. This elaborate cartoning is used in the rarer cases of bulk packaging.
Functional diagram PT-y.21.1 (Belt box cartoning)
Do you have questions about this machine?
We will be happy to advise you personally.
The main advantages
100% German engineering
Reliable mechanical technology
Long life cycle
Compact size
Hard tag. Optional knotting or stapling
Easy installation, operation and maintenance
Low maintenance and spare parts costs
Very low energy consumption
Reasonable machine price
High flexibility even with small production batches
We are constantly developing our machines. All images show realized machines to which technical improvements may have been made. Appearance and details are therefore subject to change.
Frequently Asked Questions
How many tea bags does the HST PT-21 produce per minute?
The PT-21 is the basic version of the HST double-chamber tea bag machines. It produces 150 to 175 non-heat-sealable double-chamber filter bags per minute.
Is the tag knotted or stapled?
The bag is produced with string and a fixed tag. The PT-2.21 knots on both sides, at the tag side and at the bag side. The PT-1.21 knots at the bag side only. The PT-0.21 staples with standard food-grade aluminium clips.
Which bag sizes and fill weights are possible?
Format A measures 64 x 44 mm and, thanks to its larger volume, is best suited for herbal and fruit tea. Format B measures 60 x 40 mm and is the standard size for black tea. One bag holds 2.5 to 3.5 g of tea. A machine cannot be converted to a different bag size.
What are the benefits of the double-chamber tea bag?
The two chambers offer enough room for a fast infusion and for the tea aroma to flow. Compared with a single-chamber bag, this gives 30 % more infusion.
How are the finished bags packed?
Three versions are available. With manual packing, an automatic counter counts and stacks the bags, which are then filled by hand into cartons or tins. Single-row cartoning fills pre-glued band boxes with 15 to 30 bags. Multi-row cartoning fills flat blank cartons with up to 100 bags.
