Superliner Polybag-in-Box Bag Inserter Machines
OKI is a world leader in the design, manufacturing and installation of Polybag-in-Box Bag Inserter Systems, around which we build complete Bulk Packing Line Solutions to meet the extensive needs of the market in numerous industries and applications. Our bag inserter machines eliminate the need for pre-made bags, resulting in a more efficient packaging line and fewer waste products. These polybag inserter machines make it easy to scale your operation with your company’s growth. They are simple to set up and begin operating while requiring only a minimal amount of maintenance and bag roll replacements. If your packaging line requires an automatic bag inserter, OK International offers you the best investment option you’ll find right here.SUPERLINER SL220
Polybag Maker & Bag Inserter
The SL220 makes bags from a roll of gusseted polyethylene tubing or handles pre-sealed bags on a roll, places the bag into a case, crate, drum or try and cuffs the bag over the edges to provide a hygienically lined container ready for bulk filling with a variety of food and non-food products. The machine is available in several versions including a Servo machine suitable for speeds of up to 24 cases per minute.
SUPERLINER SL330
Polybag Maker & Bag Inserter
The Superliner SL330 makes bags from a roll of gusseted polyethylene tubing and places the bag into a case, crate, drum or tray and then cuffs the bag over the edges. The SL330 is designed for customers using a wide range of film sizes and shipping containers requiring frequent changeovers.
SUPERLINER CL225
Case Erector & Case Liner
The Superliner CL225 is an integrated case erector and case liner that provides the best possible lining quality of bags inserted into electronically squared RSC or HSC cases at a rate of up to 15 cases per minute. The machine makes bags with an adjustable length from gusseted polyethylene tubing or uses pre-sealed bags on a roll. The CL225 is available with optional heat-seal assemblies for block bottom bags.
SUPERLINER SL230
Polybag Maker & Bag Inserter
The Superliner SL230 case liner makes bags from a roll of gusseted polyethylene tubing,
places the bag into a case, crate, drum or tray and cuffs the bag over the edges. Usually
integrated with a case erector or in a complete packaging line.

Superliner SL220
Polybag Maker & Bag Inserter
The SL220 makes bags from a roll of gusseted polyethylene tubing or handles pre-sealed bags on a roll, places the bag into a case, crate, drum or try and cuffs the bag over the edges to provide a hygienically lined container ready for bulk filling with a variety of food and non-food products. The machine is available in several versions including a Servo machine suitable for speeds of up to 24 cases per minute.
Features | Benefits |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
TECHNICAL SPECIFICATIONS | |
Case range: | |
Superliner SL220: | 10.00” x 8.00” x 6.00” (L x W x H) min. 25.00” x 18.00” x 20.00” (L x W x H) max. |
Superliner SL222: | 14.00” x 12.00” x 8.00” (L x W x H) min. 31.00” x 24.00” x 24.00” (L x W x H) max. |
Speed per minute: | |
Superliner SL220: | Up to 18 cases per minute. |
Superliner SL220 SERVO: | Up to 24 cases per minute. |
Superliner SL222 | Up to 15 cases per minute. |
Bag materials: | All standard polyethylene films (HDPE, LDPE, LLDPE, co-extrusions.). |
Bag gauges: | 0.7-3.0 mil (15 – 75 micron) depending on material. |
Electric: | 480V, 3 Phase, 60Hz standard, or to requirement. 400V, 3 Phase, 50Hz standard, or to requirement. |
Pneumatic: | 80-100 psi (6-8 Bar), 1/2” supply. Clean dry and unlubricated air. |
Controls | Allen Bradley or Siemens with operator fault finding display. |
Machine handling: | Right to left or left to right. |
Finish: | Stainless steel, zinc plated. |

Superliner SL330
Polybag Maker & Bag Inserter
The Superliner SL330 makes bags from a roll of gusseted polyethylene tubing and places the bag into a case, crate, drum or tray and then cuffs the bag over the edges. The SL330 is designed for customers using a wide range of film sizes and shipping containers requiring frequent changeovers.
Features | Benefits |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
TECHNICAL SPECIFICATIONS | |
Container styles: | Cases, crates, drums, pails, trays. |
Size range: | 10.00” x 8.00” x 4.00” (L x W x H) min. 24.00” x 18.00” x 20.00” (L x W x H) max. |
Bag length range. | 16″ – 46″ (400mm – 1150mm) |
Bag materials: | 0.7-3.0 mils (17-75 microns) gusseted tubing, made from standard polyethylene films (HDPE, LDPE, LLDPE, blends and co-extrusions.) |
Roll holder: | Holds two rolls of film; low level loading direct onto the shafts, easy splicing and roll changes in seconds. |
Roll diameter: | Up to 20.00” (500mm). |
Speed: | Standard machine up to 18 cycles per minute. |
Electric: | 480V, 3 Phase, 60Hz standard. Other voltages to requirement. 400V, 3 Phase, 50Hz standard. Other voltages to requirement. |
Pneumatic: | 80-100 psi (6 – 8 bar), 1/2” supply. Clean, dry and unlubricated air. |
Controls: | Allen Bradley or Siemens PLC controls with operator fault finding display. |
Guarding | Full guarding with in-feed and discharge tunnels. |
Finish: | Stainless steel. |
Machine handling: | Right to left or left to right. |

Superliner CL225
Case Erector & Case Liner
The Superliner CL225 is an integrated case erector and case liner that provides the best possible lining quality of bags inserted into electronically squared RSC or HSC cases at a rate of up to 15 cases per minute. The machine makes bags with an adjustable length from gusseted polyethylene tubing or uses pre-sealed bags on a roll. The CL225 is available with optional heat-seal assemblies for block bottom bags.
Features | Benefits |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
TECHNICAL SPECIFICATIONS | |
Case range: | 10.00″ x 8.00″ x 6.00″ (L x W x H) min. 20.00″ x 16.00″ x 16.00″ (L x W x H) max. |
Speed: | Up to 15 cases per minute. |
Case Magazine: | Horizontal powered indexing case magazine, length 40” (1000mm) with rear pushers for easy loading of the cases. 60″ (1500mm) optional. |
Taping head: | OK-55 high quality taping head with open tape feed path, suitable for 2” (50mm) wide tape and 14” (350mm) diameter rolls. OK 75 3″ (75mm) optional. |
Bag Gauges: | 0.7 – 3.0 mil (17 – 75 microns) depending on material. |
Bag material: | All standard polyethylene films. (HDPE, LDPE, LLDPE, blends and co-extrusions) |
Roll Holder: | Holds two rolls of film; low level loading and easy splicing for quick roll changes. Roll diameters up to 19” (480mm) or 100 lbs. (45kg) max. |
Electric: | 480V, 60 Hz, 3 Phase, or to local requirement. 400V, 50 Hz, 3 Phase, or to local requirement. |
Pneumatic: | 90 – 100 psi (7-8 Bar), 3/4” supply. |
Controls: | Allen Bradley or Siemens PLC controls with 6” color touch-screen display with self-diagnostics and troubleshooting. |
Signals: | Low cases, no cases, low bags, no bags, bag not opened, low tape, no tape, tape not applied and tape not cut. |
Finish: | Stainless Steel. |
Machine handling: | Depending on case handing, right to left or left to right. |

Superliner SL230
The Superliner SL230 case liner makes bags from a roll of gusseted polyethylene tubing, places the bag into a case, crate, drum or tray and cuffs the bag over the edges. Usually integrated with a case erector or in a complete packaging line.
Features | Benefits |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
![]() | ![]() |
TECHNICAL SPECIFICATIONS | |
Case range: | 10.00” x 8.00“ x 6.00” (255x200x150mm) (L x W x H) min. 25.00“ x 18.00” x 20.00“ (635x460x500mm) (L x W x H) max |
Speed: | Up to 15 cases per minute. |
Bag Gauges: | 0.7 – 3.0 mil depending on material. |
Bag material: | All standard polyethylene films. (HDPE, LDPE, LLDPE, co-extrusions) |
Electric: | 480V, 60 Hz, 3 Phase, or to local requirement. 400V, 50 Hz, 3 Phase, or to local requirement. |
Pneumatic: | 90 – 100 psi (7-8 Bar), 3/4” supply. |
Controls: | PLC Controls with 6” (150mm) Color Touchscreen HMI. |
Finish: | Stainless Steel, zinc plated. |
Machine handling: | Depending on case handing, right to left or left to right. |
See Our Machines in Action
Superliner SL220 Polybag Maker & Bag Inserter
Superliner SL330 Polybag-in-box Maker & Bag Inserter
Superliner CL225 Case Erector and Case Liner
Superliner SL220 Case Liner Polybag Maker & Bag Inserter w/ Flap Fold Down System
Superliner SL220 Case Liner w/ Superformer SF1-HM-FOL
Superliner SL220 Servo Case Liner
Options
Customize your machine
- 45 Degree Angled Gusset Seals to Make Block Bottom Bags
- Bag Detect & Reject Systems
- Fold Down System for Case Top Flaps
- SL222 Machine for Larger Sizes
- SL220 Servo Machine for Higher Speeds
- Premade Bags on a Roll
Get in Touch with a Representative
We’re here to help you customize your machine.