It is normal for many production lines to run into the same problems when it comes to processing tough materials such as granite, basalt, river pebbles, quartzite and other rock material.
Traditional crushing equipment's fine-reduction capability is so weak that making fine high quality aggregates is almost impossible.
This means a huge number of flaky and elongated particles in the crushed raw material can definitely be blamed for the material loss and decrease of its commercial value.
Changes in the particle size distribution will mean more burden to the screening and an increment of the circulating material, not to mention it will be very time-demanding as well.
The aforementioned issues do not only cause a decrease in the productivity of the production plant but also affect the quality and the profit of the end product.
To name but one of the top Gyratory Crusher manufacturers Sanland developed a set of crushing units of the STPP family which is especially suited for performing the operation of medium, superfine, and fine crushing; while placing a special emphasis on production of top-class aggregates.
Comparing the STPP series of crushing machines with traditional fine crushing apparatus, the STPP machines feature specifically-designed crushing chambers and larger grinding areas, altogether contributing to an enhanced fine crushing performance, higher cubic shape content, less flake-like products generation thus an overall higher product quality.
Sanland Gyratory Crushers STPP series also are equipped with Spring-loaded mechanical automatic overload protection system. When a hard object is accidentally fed in the crushing chamber through the openings, the spring system will release the pressure gradually in such a way that the jamming will cause no serious damage to any part of the main mechanism, especially the crushing parts.
A motor drives the eccentric sleeve to the point where it leads the moving cone to perform a continuous rotary movement.
The material which enters the crushing chamber is subjected to the following crushing actions:
1. Compression crushing
2. Abrasion
3. Crushing through the crushing of the material between one another
The crushed product is continuously passed from the top of the crusher to the bottom of the machine. The product discharge is done through the opening between the moving cone and fixed cone. The size of the product is primarily dictated through the adjustment of the gap between these two cones. In addition to that, the setting of the height of the grinding plate also affects the size of the product.
The parallel grinding zone which is much longer in this machine provides an effective material shaping which in turn produces a very excellent particle shape and a highly uniform product.
Model | Bottom Ø | Throat | Throughput | #4 (4 mesh) | #6 (6 mesh) | #8 (8 mesh) | #12 (10 mesh) | #16 (14 mesh) | #20 (20 mesh) | ASTM C33 | Power | Speed | Voltage | Lubrication | Weight |
STPP0911 | 914 | 11 | 68 | 32 | 27 | 21 | 16 | 14 | 9 | 18–23 | 75 | 980 | 380 | 150 | 10700 |
STPP0919 | 914 | 19 | 68 | 32 | 27 | 21 | 16 | 14 | 9 | 18–23 | 75 | 1485 | 380 | 150 | 10700 |
STPP0925 | 914 | 25 | 68 | 32 | 27 | 21 | 16 | 14 | 9 | 18–23 | 75 | 1485 | 380 | 150 | 10700 |
STPP1213 | 1219 | 13 | 109 | 50 | 41 | 36 | 27 | 23 | 15 | 32-36 | 160 | 1485 | 380 | 200 | 25130 |
STPP1219 | 1219 | 19 | 109 | 50 | 41 | 36 | 27 | 23 | 15 | 32-36 | 160 | 1485 | 380 | 200 | 25130 |
STPP1225 | 1219 | 25 | 109 | 50 | 41 | 36 | 27 | 23 | 15 | 32-36 | 160 | 1485 | 380 | 200 | 25130 |
STPP1232 | 1219 | 32 | 109 | 50 | 41 | 36 | 27 | 23 | 15 | 32-36 | 160 | 1485 | 380 | 200 | 25130 |
STPP1619 | 1676 | 19 | 181 | 77 | 63 | 54 | 41 | 36 | 27 | 50–54 | 220 | 985 | 6000 | 250 | 44090 |
STPP1625 | 1676 | 25 | 181 | 77 | 63 | 54 | 41 | 36 | 27 | 50–54 | 220 | 985 | 6000 | 250 | 44090 |
STPP2116 | 2134 | 16 | 254 | 118 | 91 | 81 | 63 | 54 | 36 | 73–82 | 315 | 740 | 6000 | 315 | 75340 |
STPP2125 | 2134 | 25 | 254 | 118 | 91 | 81 | 63 | 54 | 36 | 73–82 | 315 | 740 | 6000 | 315 | 75340 |
1. Designed for Premium Aggregate Production.
A primary use of the STPP series is for medium and fine crushing applications especially where high quality manufactured sand and premium aggregates are of demand.
The specially developed fine crushing chamber enhances the ability of the crusher to reduce materials efficiently even in the continuous operation without losing the quality of the product.
2. Superior Control on Final Particle Shape.
In comparison to the traditional fine crushers, it can significantly decrease the amount of flat particles and enhance the proportion of cube-shaped particles; as a result, the final product is able to satisfy the highest requirements regarding aggregate quality.
The use or consumption of our product by many different parts of the world that Sanland serves has made its presence worldwide.
Products are regularly dispatched to more than 60 different countries across the globe.
Sanland customers are located in:
North & South America
Europe
Middle East
Africa
Asia/Pacific
Mineral processing, stone quarry, and aggregate production projects, to name a few. The products are used and applied in these fields and more around the world.
Besides, Sanland also offers highly individualized crushing systems that match the client's material properties, production target, and factory setting.
Since 1988, Shenyang-based Sanland has focused exclusively on the design and manufacture of crushing, screening, mineral processing and material handling systems.
We operate facilities in Shenyang and Kaiyuan that together span 95,000 m² and employ over 350 staff. Full in-house control of casting, machining, welding, assembly and testing means quality is managed at every stage from raw material to finished product.
Over three decades we have completed more than 110 crushing lines around the world, covering capacities between 100 and 3,000 t/h. Beyond standard supply we offer custom machines, plant modernisation, process design, installation, commissioning and continuous technical support.
Sanland equipment is currently working in mining, quarrying and aggregate projects across 60-plus countries, among them Chile, Peru, Australia, Saudi Arabia, Russia and Southeast Asia. Clients include leading names such as BHP, Vale, CODELCO, Anglo American, ANSTEEL, Philex Mining, China Gold and Huaxin Cement.
An overseas service centre in Ontario, Canada — with local engineers and a 3,000 m² parts warehouse — ensures we can respond quickly with installation support, troubleshooting, spare parts and after-sales care.
Sanland has always applied and followed the global quality and environment management standards during project implementation and product manufacturing.
Certifications:
Sanland company has ISO 14001 Environment Management System Certification
ISO 45001 Occupational Health and Safety Management System Certification
AAA-level enterprise credit certificate
Inventor patents and intellectual property rights documentation
The company is willing and can provide additional document certification depending on the targeted market and the type of construction work to be carried out.
The certificates represent Sanland s effort and commitment towards manufacturing in a responsible and safe way, cooperating with its clients across borders as well.
Sanland's complete support for every unit involves not only installation but also adjustment (or commissioning of the plant), performance test and operators training and even after-sales servicing.
Depending on the situation, Sanland offers the customers, not only general spares and maintenance services through preventive maintenance but also technical consultancy and service guidance.
The company has already recruited over 350 staff in China aside from its local service team in Ontario, Canada giving its customers around the world an option for either in-situ support by technical experts or remote technical advisory services.
Among its core services:
Installation and commissioning assistance to the customers
Training manual and technical support instructions
Suggestions on preventive maintenance
Civil engineering and remote diagnosis services
Sanland always promises its full support from the initial supply and installation stages through to many years’ operation when the equipment still stays in service.
Saudi Arabian Limestone Elite Aggregate Production Project
Project Background
A Saudi-based company of aggregates in 2023, which mainly focused on fine crushing, changed or upgraded the stage in which the finest crushing took place so that the final aggregate product would have better properties.
The original equipment had quite a number of major flaws at the time of the upgrade:
The product was very fine aggregate full of very flat particles
Grain shape was not very good
Fine crushing by the machines is not very well done
Customer’s goal has been to raise the level of aggregates produced without lowering his productivity.
Project Results
Come operational, the machines were able to do:
Consistent final grain shape
Larger quantity of grains of the cubical types
A very well-conserved product
They confirmed through this work the Sanland fine breaking equipment capability in a very top-level aggregate production.
1. What is the STPP Gyratory Crusher classification, as primary or fine crushing machines?
As a rule, the STPP type of crusher is used for various crushing stages – coarse, fine, and even ultra-fine crushing, depending on the crusher size.
Such machines suit better the production of high-strength aggregates and sands, and are not quite suitable for initial coarse grinding.
2. What types of grain particles can be produced by using Sanland crusher at fine crushing stage.
This crusher has the optimized crushed cavity and parallel grinding zone.
By using the crushing method, in which inter-particle crushing effect is generated, the content of cubical particles can be significantly increased while the flaky particles in the final product can also be reduced.
We are a professional manufacturer of mining machinery, specializing in the R&D and production of cone crushers, jaw crushers, and other mining crushing equipment. All equipment is manufactured and quality-controlled within our own production system, allowing us to directly address customer requirements and minimize intermediate links.
Yes. Our products can be supplied with internationally recognized certifications such as CE upon customer request. Our production processes strictly comply with quality management system requirements, ensuring that all equipment meets applicable safety and performance standards for export markets.
For standard models, we typically maintain a stable production cycle and complete delivery within 30 days. For customized configurations or special operating conditions, the lead time will be confirmed based on the specific solution. A clear production and delivery schedule will be provided upon order confirmation.
For complete machinery, the MOQ is generally one unit. For wear parts and accessories, the MOQ can be confirmed based on the specific model and requirements—please feel free to consult us for details.
Prior to shipment, all equipment undergoes anti-rust and anti-moisture treatment. We typically adopt wooden crates or reinforced packaging to ensure safe delivery during long-distance sea or land transportation.
We offer flexible shipping solutions including sea freight, land transportation, or multimodal transport, and we cooperate with customers or their designated freight forwarders to manage container loading and dispatch arrangements.
We generally support commonly used international payment methods such as T/T (telegraphic transfer). Specific payment terms can be negotiated based on the order value and cooperation circumstances.
Yes. We offer customized production and OEM services to meet specific customer requirements, including adjustments to equipment structure, technical parameters, and logo/branding customization.
Prior to order confirmation, we can provide product specifications, technical descriptions, application recommendations, and relevant images or documentation to help customers gain a thorough understanding of equipment performance and make informed procurement decisions.
