Products & Services
Screeners and Screening Plants for Sand, Gravel, and Aggregates
The AMG company supplies and installs stationary, semi-mobile, and mobile screeners and screening plants for sand, gravel, and aggregates in various technical and structural designs.
Stationary screening plants are intended for permanent, high-capacity operations and allow for connection to other process lines.
Semi-mobile equipment is mounted on skids, while mobile screening plants are equipped with a wheeled chassis—both variants ensure easy relocation of the equipment as needed by the operation.
The composition and configuration of the equipment can be customized to the customer’s requirements, including the choice of screen media, conveyors, and other components.
Channel Frame Conveyors
Channel frame conveyors are designed primarily for in-field and stationary operations, providing continuous, long-term transport of bulk and lump materials over greater distances. Their enclosed, fully load-bearing design offers high strength and durability, guaranteeing stable operation even under a constant load.
Standard belt widths are 400, 500, 650, 800, and 1200 mm. At the customer’s request, we can manufacture a conveyor to custom specifications or to meet specific operational requirements.
The drive system most often utilizes MOTOR-GEAR shaft-mounted gearboxes, which ensure reliable and smooth operation. The surface finish can be painted or hot-dip galvanized, depending on customer requirements and operating conditions.
- AMG-Karel Pícha, s.r.o. also provides a wide range of spare parts for belt conveyors, including: – conveyor idlers (flat, rubber-lagged, impact, return disc, spiral, and guide), – troughing sets (standard, V-shaped, and self-aligning), – brackets for return and guide idlers, – pulleys (drive, return, and snub), – belt scrapers (blade, V-plow, segmented blade), – conveyor belts (flat, chevron, special, and industrial rubber sheeting), – pulley guards, safety pull cords, hoppers, discharge chutes, side skirting, and other components.
Channel Frame Conveyors
Channel frame conveyors are designed primarily for in-field and stationary operations, providing continuous, long-term transport of bulk and lump materials over greater distances. Their enclosed, fully load-bearing design offers high strength and durability, guaranteeing stable operation even under a constant load.
Standard belt widths are 400, 500, 650, 800, and 1200 mm. At the customer’s request, we can manufacture a conveyor to custom specifications or to meet specific operational requirements.
The drive system most often utilizes MOTOR-GEAR shaft-mounted gearboxes, which ensure reliable and smooth operation. The surface finish can be painted or hot-dip galvanized, depending on customer requirements and operating conditions.
- AMG-Karel Pícha, s.r.o. also provides a wide range of spare parts for belt conveyors, including: – conveyor idlers (flat, rubber-lagged, impact, return disc, spiral, and guide), – troughing sets (standard, V-shaped, and self-aligning), – brackets for return and guide idlers, – pulleys (drive, return, and snub), – belt scrapers (blade, V-plow, segmented blade), – conveyor belts (flat, chevron, special, and industrial rubber sheeting), – pulley guards, safety pull cords, hoppers, discharge chutes, side skirting, and other components.
Lattice Frame (Truss) Conveyors
Lattice frame (truss) conveyors are primarily used as stockpiling and discharge systems for transporting bulk and lump materials. We offer them in stationary, mobile, and semi-mobile designs, as well as floating conveyors.
Standard belt widths are 400, 500, 650, 800, and 1200 mm. At the customer’s request, we can also manufacture a conveyor to custom specifications or specific requirements.
The drive system most often utilizes MOTOR-GEAR shaft-mounted gearboxes, which ensure reliable and efficient operation. The surface finish of the structure can be painted or hot-dip galvanized, depending on the operating conditions and the required service life of the equipment.
- English: AMG-Karel Pícha, s.r.o. also provides a wide range of spare parts for belt conveyors, including: – conveyor idlers (flat, rubber-lagged, impact, return disc, spiral, and guide), – troughing sets (standard, V-shaped, and self-aligning), – brackets for return and guide idlers, – pulleys (drive, return, and snub), – belt scrapers (blade, V-plow, segmented blade), – conveyor belts (flat, chevron, special, and industrial rubber sheeting), – pulley guards, safety pull cords, hoppers, discharge chutes, side skirting, and other components.
Flat Conveyor Rollers
Flat idlers are intended for belt conveyors and for both powered and non-powered roller conveyors (tracks).
We standardly produce idlers with diameters of 51, 60, 76, 89, 108, and 133 mm, but custom dimensions can be supplied at the customer’s request.
Idlers are delivered with a primer coat. We can also manufacture custom designs according to our own or supplied technical documentation, or after mutual consultation.
The shaft ends can be modified to the customer’s request—for example, with an external or internal thread, sprockets, or other features.
Detailed dimensions and technical specifications for the idlers can be found on the [Downloads] page.
Flat Conveyor Rollers
Flat idlers are intended for belt conveyors and for both powered and non-powered roller conveyors (tracks).
We standardly produce idlers with diameters of 51, 60, 76, 89, 108, and 133 mm, but custom dimensions can be supplied at the customer’s request.
Idlers are delivered with a primer coat. We can also manufacture custom designs according to our own or supplied technical documentation, or after mutual consultation.
The shaft ends can be modified to the customer’s request—for example, with an external or internal thread, sprockets, or other features.
Detailed dimensions and technical specifications for the idlers can be found on the [Downloads] page.
Impact Rollers
Rubber-lagged and impact idlers are intended for conveyor loading zones (impact points), where they provide shock absorption and extend belt life.
We produce them in both standard and custom designs. We can manufacture custom idlers according to our own or the customer’s technical documentation, or after mutual consultation.
The shaft ends can be modified at the customer’s request, such as with an external or internal thread, sprockets, or other features as needed.
Detailed dimensions and technical specifications for the idlers can be found on the [Downloads] page.
Return Disc Rollers
Return disc idlers are intended primarily for the return side of belt conveyors, where they ensure proper belt trackingand reduce wear.
They consist of a steel body with mounted polyurethane or rubber discs, which reduce material buildup (carryback) and aid in cleaning the belt. They are also used in areas where less friction and a smaller contact area between the belt and the idler are required.
At the customer’s request, disc idlers can be supplied in various widths, diameters, disc spacings, and with shaft modifications per operational specifications.
Detailed dimensions and technical specifications for the idlers can be found on the [Downloads] page.
Spiral Rollers
Spiral idlers are used for the self-cleaning of the return side of the belt and to reduce material buildup (carryback).
They are standardly produced with a 108 mm diameter, but other dimensions can be specified at the time of order per customer requirements.
We supply idlers in both standard and custom designs—according to our own or the customer’s technical documentation, or after mutual consultation.
The shaft ends can be modified or fitted with an external or internal thread, sprockets, or other features as needed.
Detailed dimensions and technical specifications for the idlers can be found on the [Downloads] page.
Sprocketed Rollers
Rollers with single, double, or triple sprockets (simplex, duplex, triplex) are intended for powered roller conveyors(tracks) used to transport unit loads or bulk materials (when used as a belt-over-roller conveyor).
They are primarily used in production lines, warehouses, logistics centers, airports, and in custom-engineered structures designed to customer specifications.
When making an inquiry, please specify:
• Number of sprockets (simplex / duplex / triplex)
• Chain size (e.g., 04B)
• Number of teeth (e.g., 8 teeth)
• Sprocket placement
We offer standard shaft ends with milled flats to your required size, or with internal or external threads.
Guide Rollers
Guide idlers (or guide rollers) are used to keep the conveyor belt in the correct position and prevent it from mistracking(deviating from its path).
They are standardly produced with diameters of 51, 60, 76, 89, and 108 mm, but other dimensions can be supplied upon request.
We supply them in both standard and custom designs—according to our own or the customer’s technical documentation, or after mutual consultation.
The shaft ends can be modified or fitted with an external or internal thread per customer requirements.
Detailed dimensions and technical specifications for the idlers can be found on the [Downloads] page.
Plastic (HDPE) Idlers
Plastic rollers are a lightweight, durable, and quiet alternative to steel idlers. They are manufactured in an 89 mm diameter and feature high abrasion resistance, self-cleaning properties, and complete corrosion resistance.
At approximately half the weight of steel idlers, they allow for easier handling, lower transport costs, and reduced energy consumption during conveyor startup and shutdown.
The roller’s design prevents material buildup between the troughing set (frame) and the end cap, while the materials used ensure lower noise levels and reduce material adhesion (carryback). In the event of a bearing seizure, the idler shell acts as a sacrificial sliding surface that will not damage the belt.
Shafts can be manufactured with stepped ends of Ø 12, 14, 15, or 16 mm, and with internal or external threads. Dimensions and design can be customized to customer specifications.
Detailed dimensions and technical specifications for the idlers can be found on the [Downloads] page.
Troughing Sets (Idler Frames)
Flat idler sets (single-roller) are intended for flat belt conveyors and roller conveyors (tracks), while 2-roll and 3-roll troughing sets are used for conveyors with a troughed belt.
We manufacture idler frames in both standard and custom dimensions, according to our own or the customer’s technical documentation, or after mutual consultation.
The troughing angle for the sets can be selected from 20° to 30°.
Surface finish: Primer coat or zinc-plated.
Detailed dimensions and technical specifications for the idler frames can be found on the [Downloads] page.
Self-Aligning Sets
Self-aligning idlers center the conveyor belt and ensure proper tracking during operation.
We manufacture them in both standard and custom dimensions, according to our own or the customer’s technical documentation, or after mutual consultation.
The troughing angle can be selected from 20° to 30°.
Surface finish: Primer coat or zinc-plated.
Detailed dimensions and technical specifications for the idler frames can be found on the [Downloads] page.
Idler Brackets
Brackets are used for mounting return idlers and guide idlers on belt conveyors.
We manufacture them in both standard and custom designs, according to our own or the customer’s technical documentation, or after mutual consultation.
Surface finish: Primer coat or zinc-plated.
Detailed dimensions and technical specifications for the brackets can be found on the [Downloads] page.
CONVEYOR DRIVE DRUM PULLEY
Drive drum pulleys are intended for the drive stations of belt conveyors. Pulley lagging ensures better traction between the pulley and the conveyor belt, which minimizes slippage and power loss.
The lagged surface also reduces wear on the pulley shell and the belt’s bottom cover, and it improves water shedding from the contact area.
We customize the dimensions and design to customer requirements or supplied technical documentation.
Drive drum pulleys
Drive drum pulleys are intended for the drive stations of belt conveyors. Pulley lagging ensures better traction between the pulley and the conveyor belt, which minimizes slippage and power loss.
The lagged surface also reduces wear on the pulley shell and the belt’s bottom cover, and it improves water shedding from the contact area.
We customize the dimensions and design to customer requirements or supplied technical documentation.
Return / Snub Pulleys
Return and snub pulleys are intended for the return or take-up stations of belt conveyors. They are supplied with a plain or lagged surface, depending on the application and the required belt grip.
We will customize dimensions and design to customer technical requirements or supplied technical documentation.
Bucket Wheel Dewaterers
Bucket wheel dewaterers are used to dewater sand and gravel containing fine fractions in the range of 0–2 mm up to 0–22 mm. They are used for dewatering and partially washing material after the screening process.
Screw-type bucket dewaterers (suitable for material with up to 5% washable particles) also function as sand washers, thereby ensuring a higher quality final product.
Roller Conveyors
Roller conveyors (tracks) are intended for transporting unit loads or packaged materials within production lines, warehouses, and logistics systems.
They can be powered or non-powered (gravity), with various types of roller designs and structural frames.
We supply them in both standard and custom dimensions, according to customer needs or technical documentation. We can adapt the complete solution to the operating conditions and the required line capacity.
Flat Conveyor Belts
Rubber conveyor belts are intended for transporting lump and bulk materials in a wide spectrum of industries—primarily in the mining industry, sand pits, gravel pits, quarries, cement plants, lime works, brickworks, power plants, and agriculture.
We supply conveyor belts from renowned manufacturers: MATADOR, SAVA, SEMPERIT, DUNLOP, CONTITECH, and CBS PHOENIX.
Conveyor Belt Construction
A conveyor belt consists of:
• A tension carrier (carcass) – usually a textile fabric
• A top rubber cover
• A bottom rubber cover or fabric.
Standard belt widths: 400, 500, 650, 800, 1000, 1200 mm
Other manufactured widths: 300, 450, 600, 700, 900, 1050, 1300, 1400, 1600, 1800, and 2000 mm.
The belt’s properties differ according to the type of rubber covers—detailed specifications are provided in the file attached below the text.
Services and Stock
We keep the most common types of conveyor belts in stock. We also provide:
• Fabrication of endless loops
• Belt repairs
• Splicing (hot and cold).
Flat Conveyor Belts
Rubber conveyor belts are intended for transporting lump and bulk materials in a wide spectrum of industries—primarily in the mining industry, sand pits, gravel pits, quarries, cement plants, lime works, brickworks, power plants, and agriculture.
We supply conveyor belts from renowned manufacturers: MATADOR, SAVA, SEMPERIT, DUNLOP, CONTITECH, and CBS PHOENIX.
Conveyor Belt Construction
A conveyor belt consists of:
• A tension carrier (carcass) – usually a textile fabric
• A top rubber cover
• A bottom rubber cover or fabric.
Standard belt widths: 400, 500, 650, 800, 1000, 1200 mm
Other manufactured widths: 300, 450, 600, 700, 900, 1050, 1300, 1400, 1600, 1800, and 2000 mm.
The belt’s properties differ according to the type of rubber covers—detailed specifications are provided in the file attached below the text.
Services and Stock
We keep the most common types of conveyor belts in stock. We also provide:
• Fabrication of endless loops
• Belt repairs
• Splicing (hot and cold).
Special Belts
• Flame-Retardant and Antistatic Belts:
With or without a protective cover, designed for use in mines and environments with a risk of explosion.
• Heat-Resistant Belts:
Suitable for continuous material temperatures from 100 °C to 150 °C, with intermittent peaks up to 180 °C.
• Temperature-Resistant Belts:
For material up to 100 °C, moderately resistant to oils and fats.
• General-Purpose Temperature-Resistant Belts:
For material up to 60 °C, moderately resistant to oils and fats.
We supply conveyor belts from renowned manufacturers: MATADOR, SAVA, SEMPERIT, DUNLOP, CONTITECH, and CBS PHOENIX.
Conveyor Belt Construction
A conveyor belt consists of:
• A tension carrier (carcass) – usually a textile fabric
• A top rubber cover
• A bottom rubber cover or fabric.
Standard widths: 400, 500, 650, 800, 1000, 1200 mm
Other manufactured widths: 300, 450, 600, 700, 900, 1050, 1300, 1400, 1600, 1800, and 2000 mm.
The belt’s properties differ according to the type of rubber covers—details are in the file below the text.
Stock and Service
We keep the most common types of conveyor belts in stock. We also provide:
• Fabrication of endless loops
• Belt repairs
• Splicing (hot and cold)
Industrial Rubber Sheeting
We supply industrial rubber (technical rubber) intended for:
• Hopper lining
• Chutes
• Side skirting
• Belt scrapers
Special Types
Belts with Two Plies – DUO
DUO type belts consist of two woven EP plies that are not longitudinally bonded. Between the plies is a thicker rubber layer, which reduces stress between the individual plies during operation.
These belts typically have cut, unprotected edges and are used where higher belt flexibility is required.
Patterned Belts
Patterned conveyor belts have a rough profile on the carrying side to prevent slippage of the conveyed material.
• For uni-directional or bi-directional, flat or slider bed transport, a rigid EMF fabric without a bottom cover is used.
• For troughed belts, a flexible EP fabric with a bottom cover is used.
Conveyor Belts with Molded Profiles – Chevrons
The profiles (cleats) are made of the same material as the covers and are formed simultaneously with the belt during vulcanization. They have protected (molded) edges, and their type and pattern can be customized by agreement with the customer. We also supply other types of profiled belts upon request.
Belts with Bonded Profiles
The profiles (cleats) are made of the same material as the covers but are bonded onto an already vulcanized belt. We supply multiple profile types, and their layout can be customized to customer requirements.
Belts with Bonded Corrugated Sidewalls
Corrugated sidewalls are bonded onto the belt, with heights ranging from 80 to 120 mm, or as agreed. For steep incline conveying, transverse cleats can be placed between the sidewalls. We supply several designs and provide installation according to customer wishes.
Elevator Belts
These belts have an EP carcass with an open (cut) edge or occasionally a protected (molded) edge. They are suitable for the vertical transport of material in bucket elevators and discharge systems.
Powder Coating
Powder Coating
AMG operates a modern powder coating facility.
• We use a DATEL, s.r.o. powder booth and curing oven, representing the top technology in the field.
• Our equipment allows us to apply powder coatings to components with maximum dimensions of 800 × 1500 × 1900 mm (W × H × D).
• We have equipment for applying powder coatings using both tribo guns and electrostatic guns.
• Coating quality is checked using an ELCOMETER 456 digital thickness gauge, based on which we provide coating thickness measurement reports.
About the Technology
Powder coating is an environmentally friendly surface treatment method that guarantees high durability, long service life, and an attractive appearance. This technology enables high-quality finishing of both ferrous and aluminumproducts and fully complies with current environmental and technological standards.
Our Advantages
• Fast color changes
• Short lead times
• Minimal increase in product cost
Powder Paints Used (INVER)
• Epoxy-Polyester: For interior use
• Epoxy: For interior use
• Polyester: For exterior use
• Polyester Architectural: For exterior use with high UV resistance
• Polyurethane: For exterior use
The paints do not contain heavy metals or TGIC and meet EU environmental standards.
Surface Appearance Types
• Fine Texture: Various gloss levels and shades
• Coarse Texture: Various gloss levels and shades
• Metallic: Shades according to RAL Design
We offer shades according to the RAL color chart or custom colors per customer request.
Two-Layer Powder Systems
For components exposed to corrosive environments, we offer a two-layer coating option:
• Base Coat: Zinc-rich powder primer (approx. 95% zinc content) – provides high corrosion resistance.
• Top Coat: Powder topcoat in the desired shade.
This system replaces electroplating (galvanic zinc plating) and hot-dip galvanizing and is ideal for parts exposed to aggressive environments or outdoor use.
Other Surface Treatments
We arrange other surface treatment methods, such as hot-dip galvanizing and electroplating (galvanic zinc plating), through cooperation with trusted partners.