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®Crown design collection活塞顶型组合
A closer look at different crown geometries.不同顶面结构的实物展示。
Discuss a similar requirement沟通类似需求PRODUCT COLLECTIONPRODUCT COLLECTION
Explore the
details that matter.走近产品，
看见结构细节。
A selection of supplied product photographs. Discuss the specification your engine needs.精选产品实拍。具体适用型号和规格，请按您的发动机需求沟通。
Piston collection活塞产品组合
Different designs shown together.多种设计的组合实拍。
Discuss a similar requirement沟通类似需求Crown bowl and toolpath texture
A close view of bowl contours and visible toolpath texture.
Discuss a similar requirementInternal ports and pin bore
Explore internal bore positions and contour transitions.
Discuss a similar requirementCrown contour transitions
An enlarged view of contours, transitions and adjacent machined areas.
Discuss a similar requirementInternal machining detail
A closer view of webs, internal geometry and surface texture.
Discuss a similar requirementPRODUCT FEATURES产品结构特点
Look closer. See how the details connect.放大细节，理解结构。
01
Crown and valve-relief geometry顶型与气门避让结构
Crown contours and valve reliefs are developed around combustion-chamber geometry and the valve arrangement. Confirm clearance against the complete engine build.结合燃烧室结构与气门布局开发顶型及气门避让区域，装配间隙需结合整机方案确认。
Explore this detail进一步了解 ↗02
Ring grooves and pin-bore layout环槽与销孔布局
Groove dimensions, pin position and compression height are project specifications. Discuss the ring pack, stroke and connecting-rod combination together.环槽尺寸、销孔位置与压缩高度属于项目技术规范，需结合环组、行程及连杆组合共同确定。
Explore this detail进一步了解 ↗03
Internal features and oil passages内腔细节与油孔结构
Actual close-ups reveal internal contours and drilled features. Oiling details and pin requirements are reviewed for the selected design.真实特写呈现内腔轮廓与孔位，润滑结构与活塞销需求根据选定设计评审。
Explore this detail进一步了解 ↗04
Molybdenum skirt coating裙部钼涂层
Molybdenum skirt coatings help reduce friction, improve running-in and control noise in applicable configurations.裙部钼涂层有助于降低摩擦、改善磨合，并在适用配置下改善运行噪音。
Explore this detail进一步了解 ↗GEOMETRY & FIT结构与适配
Designed as part of the whole engine.围绕整机组合，设计每处结构。
Valve and camshaft flexibility气门与凸轮组合的灵活性
Selected models use a zero-offset pin and retain material below the crown for valve-pocket machining. Crown designs can accommodate larger valves and high-lift camshafts, subject to the specified engine combination.部分型号采用零偏移销设计，并在顶部下方预留气门坑加工材料。结合指定发动机组合开发顶型，可适配加大气门与高升程凸轮轴。
Offset-pin and skirt development偏移销与裙部设计
Most designs use an offset pin to help reduce cold-start noise. Strut-style skirt designs balance wear, noise and rocking control; selected applications can operate at clearances such as 0.004 in.大部分设计采用偏移销，以改善冷启动噪音。支柱式裙部兼顾磨损、噪音与晃动控制；特定应用可采用如0.004英寸的运行间隙。
Compression height and groove details压缩高度与槽形设计
Compression-height options support short- and long-stroke combinations. Pressure-balance grooves and project-specific valve reliefs address different aspects of the piston design.不同压缩高度选项支持短行程至长行程的多种组合。压力平衡槽与针对项目开发的气门避让结构，分别回应不同设计需求。
Features vary by model and application. Final alloy, components, clearances and installation requirements follow the confirmed product specification. Horsepower examples describe specific project configurations, not a universal piston rating.特点与配置因型号及应用而异。材料、配套件、间隙与装配要求以确认的产品技术规范为准；马力示例对应特定项目配置，并非全部活塞的通用额定值。
PIN SUPPORT & LUBRICATION活塞销支撑与润滑
Support where the loads meet.在载荷交汇处，重视支撑与润滑。
Dual forced pin oiling双强制销油孔
Standard-equipped models feature dual forced pin oil holes and accumulator grooves to support lubrication and stability at high engine speeds.相应标配型号设有双强制销油孔与蓄能槽，有助于高转速工况下的润滑与稳定性。
A matched component package匹配的配套组合
Applicable packages include 9310 nickel-alloy steel pins, a complete ring set and aluminium pin-boss support. The supplied components are specified with the piston.适用配套方案包含9310镍合金钢活塞销、全套环组及铝制销座支撑结构，配套件与活塞一并明确。
Heavy-duty pin upgradesHD 加强销升级
Selected high-output applications offer or recommend HD pins, including project configurations targeting 600+ or 1,000+ hp. Suitability depends on the engine, loads and complete specification.部分高功率应用提供或建议HD加强销升级，包括面向600+或1000+马力目标的项目配置。适用性需结合发动机、载荷与完整配置确定。
Features vary by model and application. Final alloy, components, clearances and installation requirements follow the confirmed product specification. Horsepower examples describe specific project configurations, not a universal piston rating.特点与配置因型号及应用而异。材料、配套件、间隙与装配要求以确认的产品技术规范为准；马力示例对应特定项目配置，并非全部活塞的通用额定值。
RING PACKAGE & OIL CONTROL环组与机油控制
Match the ring pack to the piston.让环组，与活塞协同。
GFX steel top ring. Napier second ring.GFX钢制顶环 · Napier 第二环
Applicable standard ring packages use a GFX steel top ring, a Napier second ring and a 3 mm oil ring, balancing friction reduction and oil control.适用的标配环组采用GFX钢制顶环、Napier第二环及3mm油环，兼顾降低摩擦与机油控制。
Groove detail matters关注槽形细节
Anti-detonation grooves help keep the top-ring groove clean. Ring selection and groove dimensions are developed as a matched specification.抗爆震槽有助于保持顶环槽清洁，环组选择与环槽尺寸按匹配的技术规范开发。
Matched and pre-packaged匹配与预包装
Selected products are matched and pre-packaged to reduce selection time and the risks of combining incompatible components. Street and track-day packages focus on convenient installation and long-term durability.部分产品经过匹配与预包装，降低自行拼配的时间成本与不匹配风险。街道及赛道日应用方案，关注装配便利性与长期耐用性。
Features vary by model and application. Final alloy, components, clearances and installation requirements follow the confirmed product specification. Horsepower examples describe specific project configurations, not a universal piston rating.特点与配置因型号及应用而异。材料、配套件、间隙与装配要求以确认的产品技术规范为准；马力示例对应特定项目配置，并非全部活塞的通用额定值。
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