used lang crusher
Used Lang Crusher: An Overview of Secondary Crushing in Aggregate Production
A "used Lang crusher" specifically refers to a pre-owned crushing machine manufactured by the German company Lang GmbH, historically known for its robust and efficient impact crushers. These machines are primarily employed in the secondary or tertiary crushing stages within aggregate processing, recycling, and mining operations. Their core function is to take pre-broken material from a primary crusher (like a jaw crusher) and reduce it further to a precise, cubical aggregate size suitable for concrete, asphalt, or road base. The market for used Lang crushers is driven by their reputation for durability and the cost-effectiveness they offer compared to new equipment, allowing operations to acquire high-capacity crushing technology at a reduced capital investment.
Key Applications and Advantages
Used Lang impact crushers are versatile machines commonly found in:
- Aggregate Quarries: For producing precisely shaped end products.
- Recycling Plants: Crushing concrete, asphalt, and construction demolition waste.
- Mining Operations: Processing softer ores and industrial minerals.
The primary advantage of opting for a used model is significant cost savings. Furthermore, Lang crushers are known for their solid construction, high throughput capacity, and the ability to produce a well-graded, cubical product—a critical quality in many construction specifications.
When considering a used Lang crusher versus a new model from other manufacturers, several factors come into play. The following table outlines a typical comparison:
| Feature | Used Lang Crusher | New Mid-Range Impact Crusher |
|---|---|---|
| Initial Capital Cost | Significantly lower (typically 40-60% of new) | High |
| Availability | Subject to market availability; may require lead time for sourcing. | Readily available from dealer stock. |
| Technology | May feature older control systems and wear part designs. | Incorporates latest automation, energy efficiency, and wear material technology. |
| Wear Parts & Service | Mechanical parts are generally robust; however, proprietary wear parts (blow bars, liners) may require sourcing from specialized suppliers. | Full OEM (Original Equipment Manufacturer) support with guaranteed parts availability. |
| Known Condition | Condition varies greatly; dependent on maintenance history. Requires thorough inspection. | Factory-new condition with full warranty. |
| Suitability | Ideal for operations with budget constraints, skilled maintenance teams, and where latest automation is not critical. | Best for operations requiring maximum uptime warranty, latest efficiency features, and immediate OEM support. |
Real-World Case Example: Recycling Operation in Germany.jpg)
A concrete and C&D (Construction & Demolition) waste recycling plant in North Rhine-Westphalia, Germany, provides a practical case for the use of a used Lang crusher. The plant needed to increase its processing capacity for reinforced concrete chunks but had limited capital.
They sourced a used Lang impact crusher (model LAS 80/110) from a decommissioned quarry. The machine was refurbished with new bearings and rotors by a specialized third-party workshop. Installed as their secondary crusher after a primary jaw breaker, it successfully processes up to 180 tons per hour of concrete rubble. The key to success was the thorough pre-purchase inspection by their own engineer and the availability of local technical expertise familiar with the Lang design. The cubical output product met stringent local standards for recycled aggregate in road sub-base construction..jpg)
Frequently Asked Questions (FAQ)
1. What should I inspect before buying a used Lang crusher?
Prioritize an inspection of the rotor (for cracks or excessive wear), the condition of the impact aprons/lining plates and blow bars (main wear parts), the drive motor and bearings (check for unusual noise or play), and the overall frame for any signs of cracking or repairs due to stress fatigue.
2. Are wear parts still available for older Lang crusher models?
Yes but not always directly from an OEM as original company structures have changed over time through mergers like Svedala etc.. However there is an active aftermarket industry in Europe specializing in manufacturing compatible wear parts blow bars aprons etc.. It's crucial to identify your exact model number before purchasing
3 Can I use it as my primary crusher?
Typically no Most used Lang impactors are designed as secondary tertiary units They require material that has already been reduced to manageable sizes e.g under mm by another machine like jaw gyratory
4 How does maintenance compare with newer models?
Maintenance on these robust machines can be more mechanically intensive requiring skilled fitters They often have simpler hydraulic systems if any compared modern computer controlled ones which can be an advantage simplicity but may lack automated adjustment features
5 Is resale value good?
Due their solid build reputation within industry well maintained used Lang holds reasonable resale value particularly common models like LAS series Depreciation curve flattens significantly after initial steep drop making them stable asset