GELEN horizontal shaft impact crushers deliver high-performance crushing across primary, secondary and tertiary stages. Available in five series — PDK, SDK, DST, TDK and HTK — GELEN HSI crushers combine robust rotor engineering, premium blow bar metallurgy and precision chamber geometry to achieve superior reduction ratios, consistent cubical output, and low cost per ton in limestone, aggregate and concrete recycling applications. GELEN manufactures every HSI crusher at its own plant in Ankara, and has done since 1981.
An impactor does not squeeze rock, it hits it. Blow bars on a rotor strike the feed at speed and throw it against the impact aprons, and the stone breaks again on the way back. One pass does the work that compression needs two stages to do — reduction ratios of 6:1 to 10:1 against about 6:1 for a jaw.
Breaking by impact also follows the natural planes in the stone, so the product comes out cubical rather than slabby. On limestone, concrete and asphalt that is often the whole reason to choose an impactor: the shape is right without a shaping stage after it.
The limit is abrasion. Blow bars are consumable and they wear fast in high-silica rock, which is why the PDK is at home in limestone and demolition waste and a jaw is the better primary in granite or basalt.
PDK series primary horizontal shaft impact crushers are designed for the first-stage crushing of soft to medium-hard materials including limestone, dolomite and gypsum. With rotor diameters from 1,200 to 1,600 mm and outputs from 150 to 900 t/h, PDK crushers deliver high reduction ratios and excellent product cubicity in a single pass.
| PDK1210 | PDK1313 | PDK1415 | PDK1518 | PDK1620 | |
|---|---|---|---|---|---|
| INLET OPENING mm | 1040x900 | 1340x1200 | 1540x1300 | 1840x1400 | 2040x1600 |
| MAX. FEED SIZE mm | 800 | 900 | 1000 | 1100 | 1300 |
| ROTOR DIAMETER mm | 1200 | 1300 | 1400 | 1500 | 1600 |
| OUTPUT tph | 150 - 250 | 250 - 400 | 300 - 600 | 400 - 750 | 500 - 900 |
| POWER kW | 160 | 200 | 250 | 315 | 355 |
| WEIGHT KG kg | 14,000 | 18,200 | 22,000 | 34,600 | 41,800 |
SDK series secondary impact crushers process pre-crushed material to produce tightly graded aggregate for construction and road-building applications. Available in 7 models from 75 to 600 t/h, SDK crushers offer precise output control through hydraulic apron adjustment and high-wear blow bar configurations.
| SDK1210 | SDK1213 | SDK1315 | SDK1418 | SDK1420 | K36 | K35 | |
|---|---|---|---|---|---|---|---|
| INLET OPENING mm | 1040x800 | 1340x800 | 1540x900 | 1840x940 | 2040x980 | 1000x280 | 1500x280 |
| MAX. FEED SIZE mm | 400 | 500 | 600 | 650 | 700 | 200 | 200 |
| ROTOR DIAMETER mm | 1200 | 1200 | 1300 | 1400 | 1500 | 1535 | 1535 |
| OUTPUT tph | 100 - 250 | 150 - 300 | 200 - 450 | 250 - 520 | 300 - 600 | 75 - 130 | 175 - 250 |
| POWER kW | 160 | 200 | 250 | 355 | 400 | 90 | 160 |
| WEIGHT kg | 9,800 | 12,700 | 17,200 | 24,000 | 28,300 | 12,900 | 22,000 |
DST series secondary impact crushers are purpose-engineered for river-bed mineral processing. The wide inlet opening accepts oversized feed material and the chamber geometry delivers a higher proportion of fine-sized product — ideal for sand and gravel operations. The DST is a legacy series: GELEN no longer builds new DST crushers, which is why it does not appear in the current product catalogue. The section stays here for the machines already in service — spare and wear parts are still supplied. For a new secondary crusher, ask GELEN which current series suits your feed.
| DST1418 | DST1315 | DST1112 | DST1110 | |
|---|---|---|---|---|
| INLET OPENING mm | 900x1840 | 800x1540 | 600x1250 | 600x1000 |
| MAX. FEED SIZE mm | 600 | 500 | 450 | 455 |
| ROTOR DIAMETER mm | 1400 | 1300 | 1100 | 1100 |
| ROTOR DIAMETER mm | 1400 | 1300 | 1100 | 1100 |
| OUTPUT tph | 250 - 510 | 180 - 330 | 110 - 250 | 90 - 170 |
| POWER kW | 355 | 315 | 200 | 160 |
| WEIGHT kg | 30,600 | 21,500 | 16,800 | 10,900 |
TDK series tertiary impact crushers produce highly cubical fine aggregate and mechanical sand from pre-crushed material. Versatile breaker plate geometry allows output gradation to be adjusted from coarse to fine without changing components.
| TDK1215 | TDK1212 | TDK1285 | TDK1260 | HTK1010 | |
|---|---|---|---|---|---|
| INLET OPENING mm | 330x1540 | 230x1240 | 230x890 | 230x640 | 300x1040 |
| MAX. FEED SIZE mm | 120 | 80 | 80 | 80 | 40 |
| ROTOR DIAMETER mm | 1200 | 1200 | 1200 | 1200 | 1000 |
| OUTPUT tph | 150 - 250 | 100 - 150 | 70 - 100 | 40 - 70 | 80 - 100 |
| POWER kW | 315 | 250 | 160 | 110 | 200 |
| WEIGHT kg | 20,600 | 16,500 | 10,500 | 7,200 | 6,000 |
HTK series high-speed tertiary crushers are an economical solution for manufactured sand production. The lightweight two-row rotor operates at elevated RPM to produce consistent 0–5 mm and 0–8 mm fractions from feed sizes up to 40 mm.
| HTK1010 | |
|---|---|
| INLET OPENING mm | 300x1040 |
| MAX. FEED SIZE mm | 40 |
| ROTOR DIAMETER mm | 1000 |
| OUTPUT tph | 80 - 100 |
| POWER kW | 200 |
| WEIGHT kg | 6,000 |
A PDK primary working in a limestone quarry, from the feed hopper to the discharge belt.
Holds a truck load so the crusher sees a steady feed rather than a dump. A primary that is fed in surges wears its blow bars unevenly.
Meters the rock forward and takes the fines out before they reach the chamber. Fines in a primary are wear without reduction.
The blow bars sit on a dynamically balanced rotor inside. The stone is struck here and thrown at the aprons above it.
Set the gap between the aprons and the rotor, which is what fixes the product size. They also let the aprons swing open when tramp metal arrives.
V-belt or direct drive to the rotor shaft, with thermal overload protection on the motor.
Product falls straight onto the belt. Keeping this clear is what keeps the chamber from backing up.
All GELEN HSI crusher series are built to ISO quality standards and are available as stationary or wheeled mobile configurations. The tables above summarize the key technical parameters for each series. Contact GELEN for detailed drawings, capacity curves, or site-specific configuration support.
Standard Features: Hydraulic impact apron adjustment, dynamically balanced rotor, reversible blow bars, sealed heavy-duty bearings, V-belt or direct drive, thermal overload protection.
Optional: Wireless remote control, central lubrication system, metal detector, dust suppression, wheeled mobile chassis.
Every impact crusher is built to its duty. Tell us the material, the product sizes you need and the tonnage and we will size one.
Size one for meFive steps from feed to shaped product.
Material enters the inlet and falls into the path of the blow bars on the horizontal rotor.
The bars hit the stone at rotor speed. All of the reduction energy goes in here, as a blow rather than a squeeze.
The stone is thrown against the impact aprons and breaks again on the rebound, then falls back into the rotor path for another pass.
Hydraulic adjustment of the aprons fixes how small a piece has to be before it can leave.
Because the break follows the grain rather than a wedge, the product is cubical straight out of the chamber.
GELEN HSI impact crushers are deployed in quarries, recycling plants, construction sites and aggregate operations across more than 50 countries. Each series is optimized for specific application demands — from primary limestone crushing to concrete recycling and manufactured sand production.
Primary and secondary crushing of limestone, dolomite and calcium carbonate at compressive strengths up to 200 MPa. PDK series crushers produce well-graded aggregate for cement, road base and construction supply in a single pass.
Processing reinforced concrete, brick, tile and demolition debris into reusable recycled aggregate. SDK crushers with manganese blow bars handle rebar-contaminated feed with reduced breakage risk. Output meets sub-base and fill specification.
Reclaimed asphalt pavement (RAP) processing for road rehabilitation projects. SDK and PDK series crushers reduce cold-milled asphalt to controlled gradation for re-use in hot-mix asphalt and sub-base layers, reducing raw material costs.
Production of graded construction aggregates from river gravel, sandstone and soft rock. DST and TDK series deliver precise output gradation for concrete aggregate, roadbase, drainage fill, and manufactured sand applications.
Secondary crushing of gypsum, barite, phosphate, coal, and other soft-to-medium industrial minerals. GELEN HSI crushers provide high throughput with low iron contamination in the final product — critical for chemical and industrial mineral processing.
Every GELEN HSI crusher incorporates 40+ years of engineering expertise. Discover the features that reduce operating costs and maximize uptime.
Up to 10:1 reduction in a single pass eliminates the need for additional crushing stages in soft and medium-hard applications, reducing plant investment and operating cost.
Impact apron gap is adjusted hydraulically from outside the crusher without stopping production, allowing real-time output size control and reducing plant downtime.
Each GELEN rotor is dynamically balanced to tight tolerances before dispatch. Balanced rotors extend bearing life, reduce vibration, and protect the crusher frame — lowering maintenance intervals and repair costs.
GELEN impact crushers are supplied with matched sets of blow bars in manganese, martensitic or chrome alloy to match your feed material. Blow bars are reversible and replaceable in matched pairs for consistent rotor balance.
Five series covering primary (PDK), secondary (SDK, DST) and tertiary (TDK, HTK) crushing stages. Single-source supply for complete crushing circuit from feed to mechanical sand, with matched inter-series gradation curves.
Since 1981, GELEN has manufactured crushing equipment delivered to over 50 countries. Engineering and fabrication in Turkey provides European-level quality at competitive pricing, supported by global spare parts supply.
PDK holds the primary stage, SDK and DST the secondary, TDK and HTK the tertiary.
Every circuit is different. Send us yours and we will say where an impact crusher fits and what it changes downstream.
Check my circuitFive series, separated by the stage they hold and the feed they take.
| Stage | Feed | Typical duty | |
|---|---|---|---|
| PDK | Primary | Up to 1,300 mm | Blasted limestone, demolition waste |
| SDK | Secondary | Up to about 400 mm | Primary product down to saleable sizes |
| DST | Secondary | Up to about 400 mm | Secondary duty with a heavier rotor |
| TDK | Tertiary | Up to about 150 mm | Final reduction and shaping |
| HTK | Tertiary, high speed | Up to about 100 mm | Fine product and sand fraction |
Not sure which one? Send us the duty and an engineer will say which, and what you would give up by choosing the other.
Which one fits?
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A horizontal shaft impact crusher (HSI crusher) breaks material using a high-speed rotating rotor fitted with blow bars (hammers). As material enters the crushing chamber, the blow bars strike it at high velocity, throwing it against stationary impact aprons (curtains). The material rebounds and is struck again until it is small enough to exit through the gap between the rotor and the lowest apron. The result is a cubical product with a high reduction ratio — typically 6:1 to 10:1 in a single pass.
An HSI (horizontal shaft impact) crusher uses a horizontally mounted rotor to strike material with blow bars — it is suited for primary and secondary crushing of a wide range of feed sizes and materials. A VSI (vertical shaft impact) crusher uses a vertically mounted rotor to accelerate material outward against a surrounding anvil ring — it is limited to fine, tertiary crushing and is primarily used for shaping aggregate and producing manufactured sand. GELEN manufactures both HSI and VSI series.
GELEN HSI impact crushers are suitable for soft to medium-hard materials with compressive strength up to approximately 200 MPa. Common applications include limestone, dolomite, gypsum, river gravel, sandstone, recycled concrete, recycled asphalt (RAP), demolition debris, and industrial minerals such as coal, phosphate and barite. For highly abrasive materials with high silica content (granite, basalt, quartzite), a cone crusher may offer lower wear cost per ton.
Choose PDK series for primary crushing of large feed material (up to 1,300 mm) — ideal for limestone quarries and demolition recycling. Choose SDK series for secondary crushing of pre-reduced material. Choose TDK series for tertiary crushing and fine aggregate production. Choose HTK series for high-speed manufactured sand. The DST series is legacy — no longer built, and therefore not in the current catalogue — but parts and service continue for the machines in the field. Contact GELEN for a site-specific recommendation based on your feed material, required tonnage and target output gradation.
GELEN impact crushers are designed for fast, safe blow bar exchange. After applying lockout/tagout procedures, the crusher box is opened hydraulically and the rotor is secured with the locking device. Blow bars slide out laterally using the optional lifting tool (no steel hammers required). New bars are installed in matched pairs by weight tolerance. The complete change on a PDK series crusher can be completed by two operators in under 60 minutes.
GELEN HSI crushers cover output capacities from 40 t/h (TDK 1260) to 900 t/h (PDK 1620) depending on model and feed conditions. See the technical specification tables above for model-by-model capacity ranges, or contact GELEN for a capacity calculation based on your material density and target product size.
An impact crusher reduces stone, concrete and aggregate to smaller sizes using a high-speed rotating rotor and impact plates. It is used in the primary and secondary crushing stages, and delivers a high reduction ratio and a cubical product shape on soft to medium-hard materials such as limestone, dolomite, recycled concrete and gravel.
Send your material, your capacity and the product sizes you need. An engineer answers, not a form.