Overview
The cross paddle, or cross-shaped agitator, is a mechanical mixing device designed for industrial applications requiring thorough blending of materials. Its four-blade configuration ensures multidirectional flow, making it suitable for high-viscosity fluids, suspensions, and granular mixtures. Unlike propeller or turbine agitators, cross paddles generate both radial and axial currents, preventing dead zones in mixing tanks. They are widely adopted in chemical processing, food production, and wastewater treatment due to their robustness and adaptability to various tank geometries.
Structure and Working Principle
A cross paddle consists of a central hub with four flat or pitched blades arranged at 90-degree intervals. The hub connects to a drive shaft, which transmits rotational energy from a motor. Blade angles (typically 30°–45°) determine flow patterns and shear intensity. During operation, the rotating blades push materials outward (radial flow) while angled designs induce vertical movement (axial flow). This dual-action ensures homogeneous mixing. Larger paddles may include reinforcement ribs to withstand torsional stresses, especially in high-viscosity applications.
Key Features
1. **Material Versatility**: Stainless steel variants resist corrosion in chemical environments, while carbon steel paddles offer cost efficiency for non-corrosive media. 2. **Customizable Geometry**: Blades can be welded or bolted, allowing adjustments to pitch, width, or number of arms. Some designs incorporate scrapers for tank wall cleaning. 3. **High Torque Capacity**: The symmetrical cross design distributes mechanical load evenly, reducing shaft deflection compared to single-blade agitators.
Application Areas
Cross paddles are indispensable in industries requiring consistent mixing: - **Chemical**: Blending polymers, resins, or abrasive slurries. - **Food/Beverage**: Homogenizing dough, sauces, or dairy products. - **Pharmaceutical**: Ensuring uniform suspension of active ingredients. - **Waste Management**: Agitating sludge or sedimentation tanks. Their ability to handle viscous and non-Newtonian fluids makes them preferable to marine propellers in many processes.
Maintenance and Precautions
Regular inspection for blade wear, cracks, or material buildup is critical. Corrosion-prone environments require scheduled checks for pitting, particularly at weld joints. Avoid dry running, which can warp blades. For abrasive media, hardened coatings (e.g., tungsten carbide) extend service life. Always balance the paddle assembly to prevent vibration-induced shaft damage.
B2B Procurement Guide
When sourcing cross paddles: 1. **Specify Parameters**: Provide tank dimensions, viscosity range, RPM requirements, and chemical compatibility. 2. **Material Selection**: SS316L is ideal for saline or acidic environments; polypropylene-coated paddles suit budget-sensitive projects. 3. **Supplier Evaluation**: Prioritize manufacturers with ISO 9001 certification and ask for flow simulation data if mixing efficiency is critical.
Related Manufacturers
- 主营：高速混合机、振动筛、混色机、高速混合机桨叶、上料机
- 主营：传感器、电磁阀、保护器、地磅、电动脚手架、装载机电子秤、机械抓手、砌筑升降平台、光伏板升降机、内撑吊具、混凝土振动棒、打标机、研磨机、裁切机、平移门电机、超市防盗门、磨片磨头、滑移机、消防机器人、农业打药机、履带底盘、消防器材
- 主营：刀柄架、霓虹灯、压线钳、吸水纸、升压管、指示剂、测量仪、供电器、三色灯、磨刀器、一字刀、打草绳、螺丝机、拉丝布、钢扎钩、小洋镐、恒压阀、密码链、电脑板、小锄头、雨刷片、清洁垫、开孔器、抽酒器、脱漆剂
- 主营：搪玻璃储罐、不锈钢储罐、搪玻璃蒸馏罐、搪玻璃反应锅、外半管反应釜、搪玻璃反应釜、电加热反应釜、搪玻璃搅拌器、不锈钢反应釜、薄膜蒸发器、泡花碱反应釜、碟片式冷凝器、列管式冷凝器、搪瓷管道/弯管、衬四氟反应釜、衬四氟储罐
- 主营：浓密机、搅拌机、发酵皮、桨叶组合式、搅拌装置
- 主营：干燥机、干燥设备、膏状物料烘干机、空心桨叶干燥机、二维混合机、三维混合机、高速混合机、单锥螺带真空干燥机、热风循环烘箱、超微粉碎机、真空耙式干燥机、槽型混合机、双锥回转真空干燥机、电加热双锥回转真空干燥机、V型混合机、盘式干燥机、万能粉碎机、摇摆颗粒机、沸腾干燥机、旋转制粒机
- 主营：行星搅拌机、双行星搅拌机、乳化机、真空乳化机、均质乳化机
- 主营：脱硫塔、搅拌机、搅拌器、搅拌桨、立式搅拌、衬塑搅拌、防腐搅拌、搅拌叶片、搅拌装置、搅拌设备、喷涂四氟、合金搅拌、衬胶搅拌、脱硫搅拌浆
- 主营：拉力机、万能试验机、疲劳试验机、风电桨叶疲劳试验机、扭转试验机、弯曲试验机、压力试验机、冲击试验机、材料试验机
- 主营：减速机、小齿轮减速机、斜齿轮减速机、涡轮式搅拌桨叶、行星减速机、立式搅拌机、摆线减速机、齿轮减速机、RKFS齿轮减速机、HB工业齿轮箱、FF双曲面搅拌机、K系列齿轮减速机、F系列齿轮减速机、S系列齿轮减速机、R系列齿轮减速机、RV蜗轮蜗杆减速机、加药搅拌机、污水搅拌机、侧入式搅拌机、无重力混合机用减速机、RF搅拌机、高速分散搅拌机
- 主营：胶囊颗粒、干燥设备、德邦干燥、空心桨叶干燥机、摇摆颗粒机、造粒机设备、运动混合机、真空干燥机、燃气热风炉、喷雾干燥机、高速混合湿法、粉末药品混合、蒸汽烘干翅片、中药材粉碎机、高速蒸馏设备、细粉末筛分机
- 主营：干燥机、流化床、烘干设备、传热桨叶烘干机、干燥设备、闪蒸烘干机、沸腾干燥器
- 主营：搅拌罐、混合罐、乳化罐、桨叶式三叶式搅拌罐、分散罐、加热罐、不锈钢储罐、提取浓缩设备
- 主营：真空搅拌机、双行星搅拌机、实验室分散机
- 主营：排污泵、铰刀泵、搅拌机、自吸排污泵、潜水排污泵、潜水搅拌机、轴流泵、双曲面搅拌机、潜水推流器、桨式搅拌机、框式搅拌机、污泥回流泵、格栅除污机、螺旋输送机、刮吸泥机
- 主营：改性塑料、透红外abs、耐候ASA、无人机桨叶、玻纤增强尼龙、玻纤阻燃pbt、阻燃pcabs、阻燃pcasa、改性pp、改性abs、阻燃abs、增韧尼龙、滑石粉pp、矿物填充pp、抗静电abs、玻纤pp、高光pp、塑料原材料、原料abs、pp原料、pa塑料颗粒、abs塑料、免喷涂塑料、pmma、玻纤增强pa、玻纤增强as
- 主营：小口径、气动笼、冷凝泵、循环泵、冷却泵、旋片泵、温控阀、制氧机、刀闸阀、渣浆泵、泵特点、陶瓷泵、屏蔽泵、减泥泵、切碎机、扫油泵、海水泵、磁力泵、真空泵、长袖泵、增压缸、鼓风机、排污泵、塑料泵、搅拌机