Spiral Gravity Chutes

Lower products to ground level from overhead applications

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In this video, you can see how spiral chutes deliver product from elevation to floor-level functions smoothly and quickly. They're frequently used in shipping areas, assembly and other plant operations.

Spiral Chutes from Interroll Portec provide a safe and economical way to lower products from mezzanines, work platforms, overhead conveyor lines, pick modules, or multi-level installations of any kind.

Virtually anything you can convey on a gravity, power, or belt line can be moved on a chute system.

Built for smooth, even flow

Specially designed fiberglass module profiles help control the descending speed of your products. In high humidity situations, the self starting characteristics of the gel-coated fiberglass assists products to flow freely, gently and safely.

Efficient and Effective Design

A ChuteMaster spiral chute is built with standardized 90 degrees fiberglass modules and an exit scoop. Entry and exit slides, and/or sort tables can be customized to your application. These components are made of durable hand-laid fiberglass and have a special gel-coating to provide long wearing low-friction service.

Chutemaster gravity chute for conveyor systems

Chutemaster Spiral Conveyor Specifications 326 KB PDF, opens new window

Below: standard chute components

Chute slide components

Measure (all dimensions inches)	CM-18	CM-25	CM-35	CM-51	CM-61
Straight entry transition E.D.	10	14	19	36	32
Straight entry transition horizontal length	20	27.38	37	60	63
90 degrees Entry transition E.D.	11.5	15.75	22	22	n/a
90 degrees Profile E.D.	8.25	11.25	15.75	18.75	18.75
90 degrees Exit transition E.D.	8.25	11.25	15.75	18.75	18.75
Multi-entry E.D. NA	n/a	19.22	25.38	39	41.81
Mid-level entry E.D.	n/a	11.25	15.75	18.75	18.75
Multi-entry straight entry horizontal length	n/a	33	44	60	70
Short scoop E.D.	3	3	3	3	3
Short scoop horizontal length	12	12	12	12	12
Long scoop E.D.	n/a	n/a	6	6	n/a
Long scoop horizontal length	n/a	n/a	24	24	n/a
Support pole diameter	5	5	10	10	10
Overall outside diameter	40	54.75	74	106	126
Outside conveying radius	18	25	35	51	61
Centerline radius	10.38	14.1	20.09	28.19	33.19
Centerline angle of decline	26.5 degrees	26.9 degrees	29.8 degrees	25.1 degrees	19.8 degrees
Width inside spiral profile	15.25	22.63	29.63	45.63	55.63
Straight slide sideguard height	4	5.5	6.75	15.75	14
Width inside straight slide	15.25	22.63	29.63	45.63	55.63
Standard sort table length	48	48	48	48	48
Standard sort table sideguard height	4	5.5	6	6	6
Standard sort table width	15.25	22.75	29.63	45.63	55.63
Pole base diameter	24	24	36	36	36

Space savings

The spiral chute provides at least three times the floor space savings over conventional decline conveyors. Greater space savings can be realized by multi-floor applications. The size of the chute allows it to be used in tight situations, such as elevator shafts and other small spaces.