test 5 hydraulic double roll sand making machine

Hydraulic Double-Roll Sand Making Machine

Feed Size:
≤ 100mm
Capacity:
5-350T/H
Applicable Materials:
River pebbles, calcite, smooth pebbles, iron ore, granite, basalt, gold ore, etc.
Application Range:
Limestone, calcium carbide, carbide slag, shale, basalt, river pebbles, bluestone, iron ore, copper ore, steel slag, etc.
获取报价

The hydraulic double-roll sand-making machine is a common crushing and sand-making device, offering energy efficiency and power savings: employing a ‘compression + shearing’ crushing principle, its energy consumption is lower than that of hammer or impact sand-making machines, achieving a reduction in unit power consumption of 20% to 40%.

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Description

Product Overview

The hydraulic double-roll sand-making machine, also known as the hydraulic double-roll crusher or hydraulic twin-roll sand-making machine, is an upgraded version of the spring-loaded double-roll sand-making machine. It replaces the traditional spring mechanism with a hydraulic system. Suitable for medium and fine crushing of solid materials with compressive strength below 250 MPa and moisture content under 35%, such as river pebbles, iron ore, quartzite, and limestone. Widely applicable across mining, thermal power generation, cement and ceramics, metallurgy, chemical, and building materials industries.

Working Principle

The hydraulic double-roll sand-making machine features two high-strength rollers rotating in opposite directions. When material enters the narrow gap between the rollers, it undergoes intense compression, shearing and grinding forces, resulting in fragmentation into finer particles. An intelligent hydraulic system automatically adjusts the roller gap according to material hardness, ensuring consistent crushing performance and output particle size.

Core components of hydraulic double-roll sand-making machines

1. Hydraulic Roller Assembly
Comprising a pair of wear-resistant roller shells and roller shafts, where the shells form the direct crushing surface and the shafts transmit torque. This assembly constitutes the core operational component for material compression and sand production.

2. Intelligent Hydraulic System
Comprising hydraulic pump, hydraulic cylinder, relief valve, accumulator, etc. Precisely regulates roll gap, delivers crushing pressure, and provides overload protection via automatic rollback;

3. Drive Assembly
Includes motor, gear reducer, coupling/gearbox. Supplies stable, matched rotational speed and torque to roll shafts, ensuring synchronous counter-rotation of both rolls;

4. Roll Gap Adjustment Mechanism
Interlinked with the hydraulic system, this forms the core control for output particle size, enabling precise stepless adjustment within the 1-3mm range;

5. Frame and Bearing Housing
Employing a heavy-duty welded/cast steel frame paired with heavy-duty self-aligning bearing housings, it bears crushing and squeezing forces while ensuring structural rigidity and operational stability of the entire machine.

Features

  • Energy-saving and power-efficient

Employing an ‘extrusion + shear’ crushing principle, energy consumption is lower than hammer or impact sand-making machines, with unit power consumption reduced by 20%–40%.

  •  High throughput capacity

A single unit can process 50–300 tonnes per hour or more, replacing multiple stages in traditional multi-stage crushing processes.

  • Uniform Output Particle Size

Adjusting the hydraulic system controls the gap between rollers, allowing output particle size to be freely regulated within 1mm–3mm. The finished sand predominantly exhibits cubic shapes with minimal needle and flake content.

  • Stable Operation

The compact, straightforward design lacks high-speed rotating hammers or complex rotors, ensuring smooth transmission, minimal vibration, and low noise levels.

  •  Intelligent hydraulic protection

The equipment comes standard with an advanced hydraulic system that automatically adjusts the roll gap and enables an ‘overload automatic retreat’ function, preventing faults such as equipment jamming or motor burnout.

  • Long-lasting roller skin wear resistance

Roller skins are predominantly manufactured from high-chromium manganese steel alloy wear-resistant materials and undergo special heat treatment. A single set of roller skins can last 1.5 to 3 years.

 

Technical Parameters

model Roller diameter Roller Maximum feed particle size Discharge port corresponding theoretical processing capacity (t/h) Motor power (kw)
(mm) Width (mm) (mm) 5mm 10mm 15mm
2PGY1008 ø 1000 800 ≤40 20-80 30-110 50-150 2×55
2PGY1210 ø 1200 1000 ≤60 25-100 50-180 80-240 2×90
2PGY1510 ø 1500 1000 ≤80 30-130 60-240 90-330 2×160
2PGY1810 ø 1800 1000 ≤100 40-170 80-320 120-450 2×250
2PGY2012 ø 2000 1200 ≤120 60-220 110-400 170-600 2×315

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