Overview
Gantry measuring systems, also called bridge-type coordinate measuring machines (CMMs), are stationary metrology solutions designed for measuring large components like aircraft wings, automotive body panels, or wind turbine blades. Unlike portable arms, they offer superior repeatability through fixed installation on vibration-damped foundations. These systems dominate high-volume production environments where 24/7 measurement stability is critical. Modern variants integrate laser scanners, touch probes, and vision systems—often working in tandem for complex surface analysis. Leading manufacturers include Hexagon, Zeiss, and Mitutoyo.
Structure and Working Principle
The system comprises three core components: a rigid gantry frame (moving or fixed), precision linear guides with optical encoders, and a probing system. The gantry moves along granite or ceramic rails while maintaining perpendicularity through air bearings or mechanical pre-loading. Measurement occurs via contact probes (ruby-tipped for hardness) or non-contact laser/video sensors. Data is processed through metrology software like PC-DMIS or Calypso, which compares point clouds to CAD models. Advanced systems use Renishaw’s RSP2 probes for 5-axis measurement without gantry movement.
Key Features
Thermal compensation is critical—high-end models embed temperature sensors in the frame to adjust for material expansion. Granite-based systems offer better vibration damping, while aluminum frames enable faster scanning (up to 500mm/s). Multi-sensor capability allows measuring both geometric dimensions (holes, edges) and freeform surfaces. Some systems achieve <0.5μm/m accuracy with laser interferometer calibration. Modern interfaces support I++ Simulator for seamless integration with factory automation.
Application Areas
Primary industries include: 1. Automotive: Measuring car body assemblies with 0.05mm tolerance for fitment validation. 2. Aerospace: Wing spar profile verification over 10m+ spans. 3. Energy: Turbine blade inspection against ASME B89 standards. Emerging uses include additive manufacturing quality control, where systems measure layer-by-layer deformation during 3D printing. Medical device manufacturers employ them for implant surface roughness analysis.
Maintenance and Precautions
Daily checks should include compressed air quality (for air bearings), guideway cleanliness, and probe tip wear. Annual laser calibration is mandatory for ISO 9001 compliance. Avoid abrupt temperature changes—allow 4+ hours for thermal stabilization after power-on. Install acoustic enclosures if ambient noise exceeds 75dB, which can affect vibration levels. For granite systems, humidity should remain at 40–60% to prevent moisture absorption.
B2B Procurement Guide
Key evaluation metrics: - Measurement volume: Add 20% to your largest workpiece dimension. - Accuracy vs. throughput: High-speed scanning reduces accuracy by ~30%. - Software: Ensure compatibility with existing CAD formats (STEP, IGES). Request on-site repeatability tests using your actual parts. Leasing options (≈$3,000/month) are available for short-term projects. Consider retrofitting older systems with new probes instead of full replacements.
Related Manufacturers
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：拉力试验机、高低温试验箱、恒温恒湿箱、自动影像测量仪、一键闪测仪、轮廓仪、圆柱度仪、三坐标测量机、刀具预调仪、精密闪测仪、二次元光学检测仪、手动影像测量仪、可程式恒温恒湿试验箱、闪测仪、一键影像测量仪、卧式一键闪测仪、立式一键闪测仪、冷热冲击试验箱、紫外老化试验箱、淋雨试验箱、拉力剥离试验机、万能材料试验机、电子拉力试验机、万能拉力试验机
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：恒温恒湿试验箱、冷热冲击试验箱、高低温试验箱、可程式高低温试验箱、三箱式冷热冲击试验箱、塔式紫外线老化试验机、老化试验箱、盐雾试验箱、拉力试验机、电磁震动试验台、万能材料试验机、紫外光老化试验箱、可编程恒温恒湿试验箱、温湿度循环试验箱、高低温湿热老化试验箱、高低温湿热交变试验箱、冲击试验机、高低温老化试验箱、高低温冲击试验箱、快速温变试验箱、快温变试验箱
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：试验机、高低温试验箱、冷热冲击试验箱、闪测仪、检测仪、测量仪、工业投影仪、二次元测量仪、圆度仪、测量机、圆柱度仪、刀具测量仪、影像测量仪、拼接测量仪、落地轮廓仪、手动影像仪、半自动影像测量仪、光学影像测量、粗糙度轮廓仪、自动影像测量仪、紫外老化实验机、双柱拉力机、恒温恒湿试验箱、伺服拉力机、拉力试验机
- 主营：影像测量仪、二次元测量仪、光学检测仪器、光学投影测量仪、轮廓仪、粗糙度轮廓仪、圆度仪、全自动影像测量仪、一键闪测仪、龙门影像测量仪、半自动影像测量仪、手动影像测量仪、圆柱度仪、粗糙度仪、手动影像仪、半自动影像仪、二次元影像仪、粗糙度轮廓仪一体机、闪测仪、卧式闪测仪、计量检定设备
- 主营：恒温恒湿试验箱、拉力试验机、冷热冲击箱、二次元测量仪、全自动影像测量仪、紫外老化试验箱
- 主营：泰科连接器、新能源汽车连接器、中航光电连接器、轮廓仪、表面粗糙度轮廓仪、真圆度测量仪、龙门架影像仪、直插式新能源连接器、安费诺连接器、永贵连接器、汽车高压连接器、汽车接插件、汽车连接器、电池包汽车连接器、圆形连接器外壳、汽车充电器连接器、泰科矩形连接器、重负荷电源连接器、电池包连接器、中航光电汽车连接器、泰科新能源汽车连接器、航空插头连接器、安费诺连接器插头、车载高压连接器
- 主营：二次元影像测量仪、一键式闪测仪、水滴角测量仪、恒温恒湿试验箱、冷热冲击试验箱、拉力试验机
- 主营：振动台、纸箱抗压试验机、边压环压强度试验机、耐破度测试仪、边压强度测试仪、摆锤式冲击试验机、水滴角测试仪、跌落机、盐雾机、电磁振动台、跌落试验台、淋雨试验箱、老化机、插拔力试验机、quv紫外线老化试验、纸箱跌落测试、紫外线试验机、冷热冲击试验机、冷热冲击试验箱、简支梁冲击、耐磨试验机、电池试验机、电池挤压试验机、悬臂梁冲击、磨耗试验机
- 主营：磨抛机、端淬试验机、热酸蚀装置、晶间腐蚀仪、激光粒度仪、电解抛光腐蚀仪、台式磨抛机、单盘台式磨抛机、端子截面分析仪、显微硬度计、末端淬火试验、晶间腐蚀试验、缺陷酸蚀检验、自动磨抛机、金相试样磨抛机、精密切磨一体机、样品抛光机、镜面抛光机、金相研磨机、金相制样设备、实验室抛光机、触摸屏研磨机、单控磨抛机、磨抛一体机、研磨抛光机
- 主营：三坐标、关节臂、扫描电镜、三坐标测量仪、工业CT
- 主营：拉力机、办公椅拉背试验机、自行车耐久试验机、破裂强度检测仪、恒温恒湿试验箱、冷热冲击试验箱、盐雾试验箱、紫外老化试验箱、氙灯老化试验箱、电子检测设备、振动试验台、万能拉力试验机、滑板车耐久试验机、端子拉力试验机、跌落试验机、万能材料试验机、淋雨试验箱、砂尘试验箱
- 主营：影像测量仪、PPG电池测厚仪、影像仪、二次元
- 主营：TX500C、细菌口腔显微镜、金相显微镜、共面性测试仪、接触角测量仪、表面张力仪、超低界面旋转滴张力仪、非接触粗糙度扫描仪、影像测量仪、高温真空接触角测量仪、水滴角测量仪、焊球共面性测试仪、粗糙度仪、体式显微镜、一键式闪测仪、旋转滴界面张力仪、全自动接触角测量仪、倾斜接触角测量仪、机械稳定性测试仪、超景深显微镜、磨刀机显微镜、熔深检测显微镜、XR-14
- 主营：高度计、大理石平台、高低温试验箱、全自动影像仪、2.5次元影像测量仪、一键闪测仪、拼接闪测仪、轮廓度仪、粗糙度仪、硬度计
- 主营：投影仪、粗糙度仪、轮廓仪、圆度仪、光谱仪、X射线荧光光谱仪、三坐标、扫描电镜
- 主营：光学仪器、实验室设备