Used ASM (formerly Siemens SIPLACE) pick-and-place machines (such as the early SIPLACE D/DP series) are perfectly usable in industrial production and have a large market presence. However, their suitability for direct use depends on the following key factors:
1. Machine Condition and Core Wear
* Motion Control System: Severe wear on the X/Y axis servo motors, lead screws, and guide rails will directly affect placement accuracy and operating speed. Before purchase, it is essential to test whether the machine can achieve the stated placement accuracy (especially for small components such as 0201 or high-precision BGAs).
* Placement Head: Check the nozzles of placement heads such as TwinStar for wear, motor aging, and air leaks.
* Vision System: Industrial cameras and light sources are crucial for component identification. Early DP series camera systems may not be as clear as current models, and camera aging can lead to a decrease in yield rate.
2. Software Version and Production Support
* Operating System: Early equipment may run on Windows 2000 or Windows XP, which are vulnerable to cybersecurity risks or lack official support. Verify the software license and system functionality.
* Programming and Import: Confirm that the software on older equipment can successfully parse commonly used CAD data and Gerber files for rapid program import into production.
3. Core Components and After-Sales Service
* Parts Supply: ASM (Siemens) equipment parts are relatively expensive. While there are many salvaged, refurbished, and third-party spare parts available on the market, confirm the sourcing channels and prices for consumable parts (such as nozzles, belts, and vacuum valves) before purchasing.
* Maintenance and Upkeep: SMT equipment requires professional, regular calibration and maintenance. Ensure your team or third-party engineers are capable of calibrating, lubricating lead screws, and restoring accuracy for this model.
Purchase and Usage Recommendations
1. On-site Prototyping Test: Ensure the supplier powers on the machine and conducts prototyping tests using your actual PCB board and components to verify the feeder error rate and placement accuracy.
2. Calculate Overall Costs: While the initial purchase cost of used equipment is low, subsequent expenses such as replacing aging servo motors, purchasing feeders, and repairing motherboards can add up to a significant sum.
3. Confirm Feeder Configuration: Confirm the quantity and specifications of the feeders and material carts included with the machine to ensure they meet your production needs. Used feeders from ASM are relatively expensive.
Summary: Used ASM DP pick-and-place machines are very robust and durable in terms of hardware architecture. As long as the mechanical precision is undamaged, the vision system is functioning properly, and spare parts/software support is available, they are a very cost-effective choice for small to medium-sized SMT processing plants or multi-variety, small-batch production scenarios.
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