Horizontal flow packaging · Silver On Edge
Silver On Edge Model Horizontal Flow Wrapper
A servo flow wrapper for biscuit and cracker packs: products stand on their edge, are formed into a slug and wrapped as one tight pillow pack, at 100 to 140 pieces per minute on hot- or cold-seal film.

Silver On Edge Model Horizontal Flow Wrapper with on-edge biscuit infeed conveyor and twin film reels.
100-140 /min
pieces per minute, capacity
Hot and cold
sealing on OPP, CPP and BOPP film
6 kW
installed power
Auto splicer
double reel holder, max. roll Ø 300 mm
Overview
About the Silver On Edge

The Silver On Edge is designed specifically for industrial biscuit production lines. Biscuits and crackers stand upright on their edge, face to face, and travel as a closed roll; the infeed separates this roll into slugs, a lug chain pushes each slug into the film tube and the jaws seal and cut the pack. The machine works with a fully automatic product feeding system or with manual feeding, so it fits both oven lines and smaller batches. Flexible settings let the line be tuned to each product, and the user-friendly 10 in Omron touch screen stores pack length and seal settings as recipes. Its robust construction cuts operating time while protecting hygiene and product integrity.
What an On-Edge Flow Wrapper Does
On-edge (or slug) packing is the standard way to sell thin, flat biscuits and crackers in quantity. Standing the pieces on their edge lets many of them share one short film tube; the roll supports itself, so the biscuits do not shift or chip in the case, and the shopper sees a neat cylinder on the shelf. On the Silver On Edge the whole path is horizontal and continuous: guides turn the biscuits onto their edge, the slug separator splits the roll, servo pushers set every slug into the lug chain, three disc sets (puller, single heater and folding) form the fin seal underneath and the jaws seal and cut between slugs.

Silver On Edge working principle: product handling and slug forming (1 to 5), film forming and sealing (6, 7) and discharge (8).

Silver On Edge wrapper with twin film reels, AISI 304 product-contact parts and swing-arm HMI.
Why Choose the Silver On Edge Model
Made for biscuit lines. Built for industrial biscuit production: soft biscuits, hard biscuits and cracker-type products are packed standing on edge, one roll per pack.
Hot and cold seal. 100 to 140 pieces per minute on either heat-seal or cold-seal film, from OPP, CPP and BOPP materials.
Automatic or manual feeding. Connect the wrapper to a fully automatic product feeding system, or feed it by hand for smaller batches.
Servo precision. Omron servo motors, motion control and PLC with a digitally controlled cutting length keep every seal in place.
Hygiene. Surfaces in contact with the product are AISI 304 stainless steel; the robust frame keeps operation simple and protects product integrity.
Applications
Silver On Edge Model Horizontal Flow Wrapper: Application Areas
Soft biscuits, hard biscuits and cracker-type products, standing on edge in one roll per pack.
The Silver On Edge packs biscuit and cracker rolls. Typical products are soft biscuits, hard biscuits and cracker-type products that stand on their edge and line up face to face: tea and Marie biscuits, cream sandwich biscuits, digestives with or without a chocolate coating, chocolate chip and oat cookies, ginger and coconut biscuits, shortbread, salted crackers and puffed rice cakes. Protrus selects the film, seal type and slug guides for each product and proves them on a trial with the customer’s own biscuits and film. As a typical guide, the packing room is held at 18 to 20 °C (64 to 68 °F) so coatings stay firm and biscuits do not take up moisture.
On-Edge Slug Packs Wrapped on the Silver On Edge

Marie tea biscuits

Cocoa cream sandwich

Lemon cream sandwich

Digestive biscuits

Chocolate digestives

Round salted crackers

Chocolate chip cookies

Oat cookies

Ginger biscuits

Coconut biscuits

Shortbread rounds

Puffed rice cakes
Typical Slug Packs and Output
| Product group | Catalog product type | Typical size, mm | Typical pieces per pack | Seal |
|---|---|---|---|---|
| Tea, Marie and butter biscuits | Hard biscuit | Ø 50 to 70 × 4 to 7 | 25 to 40 | Hot seal |
| Cream sandwich biscuits | Hard biscuit | Ø 45 to 60 × 10 to 13 | 12 to 20 | Hot seal |
| Digestives, chocolate-coated | Hard biscuit | Ø 60 to 75 × 7 to 10 | 12 to 20 | Cold seal |
| Cookies, oat and ginger biscuits | Soft biscuit | Ø 50 to 75 × 8 to 15 | 10 to 20 | Hot seal |
| Round and square crackers | Cracker-type | Ø or □ 40 to 65 × 4 to 7 | 25 to 40 | Hot seal |
| Puffed rice cakes | Cracker-type | Ø 60 to 80 × 9 to 15 | 8 to 15 | Hot seal |
Output: 100 to 140 pcs/min, hot or cold seal. Sizes and pieces per pack are typical values. Final figures depend on product, slug length and film and are confirmed after a trial.
Slug Feeding: Manual Magazine or Inline from the Oven
The Silver On Edge adapts to fully automatic product feeding systems as well as to manual feeding. For smaller outputs the operator lays biscuit rolls into a magazine on the infeed and the slug separator meters them into the wrapper. For oven lines, an inline on-edge infeed takes the biscuits from the cooling conveyor, aligns them and turns them onto their edge in a stainless chute, where they close up into a continuous roll. A sensor watches the roll: if it is too short or has a gap, no pack is made. Straight or L-shaped layouts are drawn to the customer’s factory plan and fit the existing oven outlet.

On-edge slug infeed conveyor

L-shaped packaging line
Specifications
Silver On Edge Model Horizontal Flow Wrapper: Technical Specifications
Key data for the standard machine. Final values depend on the product, the slug and the film and are confirmed in each Protrus offer.
Technical Data
| Parameter | Silver On Edge | Note |
|---|---|---|
| Machine type | Servo-controlled horizontal flow wrapper (HFFS) for biscuit and cracker packs standing on edge | One roll per pack |
| Capacity | 100 to 140 pcs/min, hot- or cold-seal film | Depends on product, film and configuration |
| Product / slug | Biscuits typically Ø 35 to 80 mm, 4 to 15 mm thick; slug typically 15 to 40 pieces | Typical values, other sizes on request |
| Film reel | Max. roll diameter 300 mm (11.8 in), reel core 70 to 76 mm | Double reel holder with auto splicer |
| Film handling | Mechanical film centering; digitally controlled cutting length | Next reel joined while running |
| Packaging films | OPP, CPP and BOPP materials | Samples tested by Protrus engineers |
| Sealing | Hot and cold sealing | Cold seal for coated biscuits |
| Fin seal discs | 3 disc sets: puller, single heater and folding | |
| Chain conveyor | Slug-specific pusher fingers and side guides; mechanical chain tensioning | |
| Feeding | Fully automatic product feeding system or manual feeding | Straight or L-shaped layout |
| Control | Omron PLC, motion control, servo drives, inverters and servo motors; 10 in Omron HMI | Recipe per product |
| Components | Siemens and Schneider electrical equipment, DKP control cabinet, ELK AC motors, Tramec (Italy) gearboxes, Sick photoelectric sensors, safety limit switches and emergency relays, Omron relay modules and other electrical components, SMC pneumatics, SKF-FAG-ORS bearings | |
| Electrical supply | 380 to 400 V ±10 %, 3 phase, 50 Hz; 6 kW installed | Depends on configuration |
| Compressed air | 6 bar (87 psi) | Dry, oil-free air |
| Weight | Approx. 2,000 kg (4,410 lb) | Flow pack machine |
| Dimensions | Project-specific, drawn to suit the customer’s factory layout | |
| Construction | Product-contact surfaces AISI 304 stainless steel | Date coder input included |


Twin film reels on the double reel holder with auto splicer, and the end-seal unit behind its perforated guard.
Main Assemblies and Options
Film unwind. The next reel waits on the double reel holder and the auto splicer joins it on the fly, so long biscuit runs do not stop for film.
End-seal unit. The jaws work behind a perforated stainless guard that lets heat escape and keeps hands out; an outfeed belt takes the packs away.
Options. Date coder (input included as standard), metal detector, X-ray, checkweigher, collection conveyor and case packing interface.
Frequently Asked Questions
Get a Quote
Plan your on-edge biscuit pack with Protrus
We run a trial, fix the slug length and pack size and return a budget offer for the Silver On Edge Model Horizontal Flow Wrapper.
Prefer email? info@protrus.com

