90 Degree Turning Roller Conveyor
The SunAura 90 degree turning roller conveyor changes product flow direction around a corner using motorized tapered stainless steel rollers — with an optional pneumatic side-push mechanism for positive transfer. It lets your packaging line bend around walls, machines and columns without leaving the floor, making it the standard solution for space-constrained layouts. CE-certified and factory-direct.
Product Description
The SunAura 90 degree turning roller conveyor is a motorized curved section that rotates the flow of cartons and boxes through a quarter turn without stopping or rotating each item by hand. Instead of straight cylindrical rollers, the curve uses tapered conical rollers. Because the roller surface speeds up from the inner radius to the outer radius, the carton naturally sweeps around the bend and exits on the perpendicular line — keeping its orientation and speed. This is how production lines wrap around a case sealer, a palletizer or a structural column without extra operators.
The standard unit turns exactly 90 degrees with an inner radius from 300 to 600mm, chosen to suit your smallest carton width. A 0.37kW gear-motor drives the tapered roller bed at 0–12m/min on a 30kg/m load rating. For tight corners or slippery cartons, we offer an optional pneumatic side push mechanism with a 50mm-bore cylinder that gives the carton a positive nudge as it enters the curve, preventing it from stalling or riding the inside rail. Widths of 300–600mm are built to order.
Like every SunAura powered conveyor, the turn section is run-tested for 48 continuous hours in our Qingdao factory before shipment. We supply matching transition plates and straight side sections so the turn bolts into your existing line at exactly the right height.
Technical Specifications
| Product Type | Motorized 90-degree curved roller conveyor (turn) |
|---|---|
| Turn Angle | 90 degrees (quarter turn) |
| Inner Radius | 300 – 600mm (selected by carton size) |
| Rollers | Stainless steel tapered (conical) rollers |
| Load Capacity | Up to 30 kg/m |
| Conveyor Speed | 0 – 12 m/min, variable |
| Drive Motor | 0.37 kW gear-motor |
| Optional Pusher | Pneumatic side push, 50mm bore cylinder |
| Width | 300 – 600mm (custom) |
| Frame | Stainless steel / powder-coated steel |
| Height | Matched to straight conveyor sections |
| Certification | CE Certified, ISO 9001 factory |
Key Features & Benefits
- True 90-degree product turn: Tapered conical rollers sweep cartons around the bend automatically — no turntable, no operator, no pause.
- Variable inner radius: 300–600mm radius lets us match the tightest corner your floor allows while still supporting your smallest carton.
- Tapered roller geometry: Rollers speed up from inner to outer edge, so the carton follows the curve without drifting, jamming or spinning.
- Optional pneumatic side push: A 50mm-bore cylinder gives slippery or light cartons a positive nudge at the curve entrance — eliminates stalling.
- Motorized 0.37kW drive: Powered curve keeps speed matched to your straight sections (0–12m/min) for continuous flow through the turn.
- Bolts into existing lines: Matching entry and exit heights and transition plates let the turn drop between two straight SunAura sections.
- Space-saving corner solution: Routes product around walls, machines and columns instead of running a long straight detour across the floor.
- 48-hour run tested: Every turn section is run loaded in our factory before it ships.
Application Industries
Packaging Line Direction Changes
Routes cartons from sealing to labeling, or from labeling to case packing, around a right-angle change in the line.
Corner Transfer
Transfers product around corners between rooms, around pillars, or across doorways in a long production layout.
Sortation Systems
Combines with straight roller sections and pushers to route cartons to different packing or shipping lanes.
Space-Constrained Layouts
Where floor space won’t allow a long straight run, the 90-degree turn folds the line into a compact footprint.
End-of-Life Packaging
Feeds cartons into shrink wrap or palletizing cells that sit perpendicular to the main packaging flow.
Product compatibility: Rigid flat-bottomed cartons and boxes up to 30kg/m. Bottles and jars should use our narrow chain plate conveyor with side guides instead.
How the 90 Degree Turn Conveyor Works
A curved roller conveyor turns product using geometry rather than a turntable. Tapered rollers give different surface speeds across the width of the curve:
- Carton enters from the straight section. The motorized curve receives the carton at the same height and speed as the incoming straight roller conveyor.
- Tapered rollers drive the sweep. Each conical roller is longer on the outer radius than the inner. Because the outer edge of the roller travels farther in one revolution, it moves faster — exactly matching the longer outer path around the bend.
- Optional pneumatic pusher assists. For light or slippery cartons, a pneumatic cylinder briefly pushes the carton inward as it enters, preventing it from riding the outer rail and stalling.
- Carton exits at 90 degrees. The carton leaves the curve heading perpendicularly, with its orientation preserved, and transfers onto the next straight section.
- Speed stays matched throughout. The 0.37kW drive holds a constant 0–12m/min through the turn so product doesn’t bunch up or gap out on either side.
Is This the Right Conveyor for You?
This turn section is the right fit if your operation matches all four of the following. If you fall outside any of them, our team can recommend a different SunAura conveyor:
- You need a 90-degree product direction change: If your line must bend around a corner, this is the direct solution. For gentle U-turns or multi-product sortation we can discuss chain-plate curves instead.
- Rigid cartons, not bottles or loose items: Tapered rollers need a flat, rigid carton bottom to sweep cleanly. Bottles, jars and loose parts need a belt or chain-plate conveyor.
- Load up to 30kg/m: This curve is rated for light-to-medium carton flow. Heavier loads over 30kg/m should use our heavy-duty 90-degree chain plate system.
- You can accept a 300–600mm inner radius: The radius sets how much floor the corner needs. If your corner is tighter than 300mm inner radius, we will discuss alternative transfer methods rather than force an undersized curve.
Troubleshooting Guide — Common Issues & Solutions
Curved conveyors are more sensitive to setup than straight lines because the geometry has to match your carton. Below are the most common problems we diagnose remotely. Always lock out power before inspecting the drive or roller bed.
| Problem | Possible Causes | Solutions |
|---|---|---|
| Carton stalls inside the curve | Radius too tight for the carton; carton bottom too slippery; curve speed slower than incoming section; no pusher fitted. |
|
| Carton rides the outer rail | Curve running too fast relative to the carton; inner radius too small; side guide on outer side missing or too high. |
|
| Carton exits skewed, not square | Entry and exit heights mismatch; transition plate missing; rollers not angled correctly; incoming line pushing crookedly. |
|
| Pneumatic pusher doesn’t fire |
| |
| Rollers not turning around the curve | Drive chain off a sprocket; tapered roller seized; line shaft coupling slipped. |
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If the issue persists after trying these steps, email photos and a short 10-second video to [email protected] — our engineers usually diagnose the root cause within one business day.
Frequently Asked Questions
How do you choose the inner radius for the curve?
The rule of thumb is that the inner radius should be at least half the width of your widest carton. We offer 300, 450 and 600mm inner radii. Smaller radii suit narrow cartons; larger radii give big cartons a gentler, more stable sweep. Send us your carton dimensions and we recommend the radius.
Do I need the pneumatic side pusher?
It depends. Rigid, textured-bottom cartons usually sweep around a tapered roller curve on their own. Light, slippery, or glossy-bottom cartons tend to stall or ride the outer rail — for those, the pneumatic pusher is strongly recommended. We can also fit it later if you find you need it after installation.
Can it turn the other direction (left instead of right)?
Yes. We build the curve to turn clockwise or counter-clockwise depending on your layout. Tell us the incoming and outgoing directions on a simple sketch and we will build the correct hand.
How does it connect to my existing straight conveyor?
The turn has matching entry and exit heights and bolt-on transition plates. When you order, we confirm the deck height of your existing straight sections so the carton transfers without a step or gap. We can also supply matching straight sections if needed.
What is the warranty and lead time?
Standard curves ship in 15–20 days; custom radii or widths take 25–30 days. Every powered turn carries a 12-month warranty plus lifetime technical support, and spare tapered rollers and cylinders are dispatched worldwide within 48 hours.
Why Buy From SunAura Machinery
48,000㎡ Own Factory
In-house manufacturing in Qingdao, China — tapered roller fabrication under one roof.
CE Certified
All powered conveyors meet European safety standards with full documentation.
ISO 9001:2015
Quality management system certified across the entire production process.
SGS Audited Factory
Third-party audited manufacturing facility with 20+ national patents.
12-Month Warranty
Full warranty covering parts and labor from the date of shipment.
Lifetime Support
Technical guidance via email, WhatsApp, and remote video for the conveyor’s life.
Spare Parts in 48h
Tapered rollers, motors and cylinders shipped worldwide within 48 hours.
100+ Countries Served
Trusted by packaging lines across food, pharma, logistics and manufacturing.
Get a Factory-Direct Quote in 24 Hours
Send us a simple layout sketch with your carton size and desired turn direction — our engineers reply with the right radius, FOB price, and lead time within one business day. Every conveyor is built in our 48,000㎡ Qingdao factory, CE & ISO 9001 certified.
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