Guttridge Bulkflo Mobile Screw Elevators
Mobile loading hopper with integral screw elevator.
The Guttridge Bulkflo is a large capacity mobile loading hopper with an integral screw elevator designed for use within the food, chemical, and pharmaceutical industries. Ideal for handling pellets, flakes, powders, granules, and any free-flowing materials. Typical uses include feeding, mixing, processing, and packaging machinery or in applications where intermediate storage is needed.
Bulkflo – large capacity mobile loading hopper with integral screw elevator.
The loading hopper has an integral horizontal discharge screw with an end discharge into the elevating screw. The elevating screw is adjustable from a 90° vertical position down to 70° (or optionally to a horizontal position), thus allowing unique flexibility and onsite convenience. The varying pitch to give a discharge screw is usually manufactured with an even discharge over the hopper length, and its speed can be specified to give the required volumetric discharge rate. Optionally, a paddle or ribbon type discharge screw can be fitted to agitate the hopper contents.


Materials Supported
The CTX range of belt & bucket elevators support most free flowing materials a small selection of which are shown below.

Flours & Powders

Sugar & Sweeteners

Fertilisers & Agrochemicals

Pigments & Dyes

Excipients & Fillers

Similar Materials
Machine Throughput*
Depending on material characteristics and machine size.
Benefits
- Designed specially for use with Auger Filling Machines
- Rapid release tube clamps & slip-fit auger for easy clean down
- Robust packing gland seal protects bearings from product ingress
- 316 stainless steel contact parts
- Tough powder coated mild steel non-contact parts
- Available configured and modified to suit individual specifications

Construction
The Bulkflo machine is sturdily constructed, using high quality materials throughout. All components are precision punched and fabricated for ease of assembly and interchangeability. All contact parts are manufactured from 316 grade stainless steel, with external surfaces polished to a uniform grained finish of 180 grit. Non-contact parts are manufactured from mild steel, with external surfaces powder coated for maximum durability, with the option of stainless steel construction.
The discharge and elevating screws are separately driven from two geared motor units, IP55 rated. Conventional flange bearings support the stainless steel drive shafts, which rotate in a packing gland seal to provide an effective seal against most types of products. The non-driven shafts run in nylon bushes ensuring a long trouble-free life.
Operation
Careful attention has been paid to the design of the Bulkflo machine to ensure ease and safety of operation. A single Allen key is the only tool necessary for a typical clean-down operation between batches. The main tube sections are joined by a special tube clamp which provides a strong and secure joint that can be easily disassembled by undoing a single captive set screw. The drive shaft and screw sections are connected using special slip-fit couplings which require no gudgeon bolts making disassembly remarkably quick and easy. The Bulkflo elevating screw is designed for use at an incline angle of 70°, adjustable to 90° or optionally to any angle down to horizontal (with appropriate support).

Conveying Solutions
Bulk Materials Handling for a diverse range of materials.
Guttridge has over 60 years experience delivering bulk handling solutions. We specialise in both off the shelf modular conveyors and bespoke systems designed to meet the unique needs of each customer. From small business to large commercial enterprises, we’re committed to delivering the best materials handling solutions, every time.
“We were impressed with the company’s willingness to innovate new solutions that would help us to achieve the very highest levels of reliability – a major goal for our site.”
– Mr Adam Elmes, Project Manager at Lafarge, discussing the supply of sand/cement/aggregate handling equipment
Features & Options
ATEX*
Features:
- ATEX Certified machinery is available for applications which handle potentially explosive products
- Fully certified ATEX Zones 20 internally, and Zones 21 and 22 both external and internal
Construction
Features:
- Wheel-mounted frame for mobility
- Machine frame and drive mounting painted as standard
- 316 stainless steel contact parts
- Modular screw and tube design
Options:
- Bulk bag connection spigot
- Stainless Steel throughout
- Hinged Lid
Difficult Products
Features:
- The Bulkflo is able to deal with difficult to convey products in a number of ways
Options:
- Product Agitator
- Mirror finish internal surfaces
- Vibrator motor to agitate and move products
Dust Extraction Hood*
Features:
- Allows extraction of dust from tipping
Options:
- Various sack support table configurations available (pictured)
Easy Release Tube and Screw Joints
Features:
- Allows easy strip down for cleaning
- Slip fit drive shaft connection with dog drive
- Outer tubes clamped with single securing bolt0
Electric Control Panel
Features:
- Integral start/stop controls
Options:
- Hopper level probes to monitor levels of product in the Bulkflo
- Custom control systems available
Elevator Discharge Height and Screw
Features:
- Elevator screw adjustable from 70 – 90°
Options:
- Extended frame for stability
Geared Motor Drives
Features:
- Suitable for Inverter use
Options:
- Swing-away drive for easy clean down and access to horizontal auger
Heating/Cooling*
Features:
- Jacketed hopper and screw tubes to keep products at required temperatures
- The Bulkflo can also be used to for product cooling, or to maintain product temperatures in particularly warm or cold environments
Hopper Capacity
Features:
-
Standard: 400 litre
Options:
- Optional: 100 – 1000 litre
Drain point, ideal for wet clean down
Shaft Seals
Features:
- Packing glands seal all drive end shafts
Options:
- Optional garlock seals with hardened shaft
Weighing Systems*
Features:
- For those applications where controlled feed is essential, the Bulkflo can be easily customised with a Weighing System
- Load cells with controller for loss in weight applications
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FLO Bulkflo Brochures

Guttridge Conveying Solutions Brochure
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Address
Guttridge Limited, Wardentree Park, Spalding, Lincolnshire, PE11 3UU, United Kingdom
Phone
