Rotary Positioning Accuracy ±0.001 mm: How Hydrostatic Tables Achieve It

Key Takeaways:

Marusaku hydrostatic rotary tables reach ±0.001 mm rotary positioning accuracy. The result comes from non-contact support, direct-drive torque motor, and closed-loop Heidenhain feedback working together.

Rotary Positioning Accuracy ±0.001 mm: How Hydrostatic Tables Achieve It
Tags:
rotary positioning accuracy 0.001 mm rotary table hydrostatic accuracy direct drive torque motor closed loop encoder
Available Languages
🇷🇺 Русский

Точность позиционирования ±0,001 мм: как её дают гидростатические столы

Что значит ±0,001 мм

Для φ630 это ≈±0,3 угловой секунды — нужно для многогранной обработки и деления.

Точность

Три фактора

Неконтактная опора (нет износа), прямой привод (без люфта), замкнутый контур Heidenhain RCN2380 (коррекция позиции).

Вместе

Убирают три источника ошибок: опору, передачу, измерение.

Применение

Оптика, нарезание зубьев, аэрокосмос, измерения.

🇻🇳 Tiếng Việt

Độ chính xác định vị ±0,001 mm: bàn thủy tĩnh làm được nhờ đâu

±0,001 mm nghĩa là gì

Với φ630 ≈±0,3 giây cung — cần cho gia công đa mặt và chia độ.

Độ chính xác

Ba yếu tố

Không tiếp xúc (không mòn), dẫn động trực tiếp (không chơi lỏng), vòng kín Heidenhain RCN2380 (hiệu chuẩn).

Cùng nhau

Xoá ba nguồn lỗi: đỡ, truyền, đo.

Ứng dụng

Quang học, cắt bánh răng, hàng không, đo lường.

🇫🇷 Français

Précision de positionnement ±0,001 mm : comment les tables hydrostatiques l'obtiennent

Que signifie ±0,001 mm

Pour φ630 cela fait ≈±0,3 seconde d'arc—nécessaire pour l'usinage multi-faces et le division.

Précision

Trois facteurs

Support sans contact (pas d'usure), transmission directe (sans jeu), boucle fermée Heidenhain RCN2380 (correction).

Ensemble

Élimine les trois sources d'erreur: support, transmission, mesure.

Applications

Optique, taillage d'engrenages, aéronautique, métrologie.

🇩🇪 Deutsch

Drehtisch-Positioniergenauigkeit ±0,001 mm: wie hydrostatische Tische sie erreichen

Was ±0,001 mm bedeutet

Bei φ630 entspricht das etwa ±0,3 Winkelsekunden—nötig für Mehrseitenbearbeitung und Teilung.

Genauigkeit

Drei Faktoren

Kontaktfreie Lagerung (kein Verschleiß), Direktantrieb (ohne Spiel), geschlossener Kreis Heidenhain RCN2380 (Korrektur).

Zusammen

Eliminiert die drei Hauptfehlerquellen: Lagerung, Übertragung, Messung.

Anwendung

Optik, Zahnradfräsen, Luftfahrt, Messtechnik.

What ±0.001 mm Means

Rotary positioning accuracy of ±0.001 mm at a φ630 mm table corresponds to an angular error of roughly ±0.3 arc-second. That level of repeatability is required for multi-face machining and precision dividing.

Rotary accuracy

Three Enablers

  • Non-contact hydrostatic support removes wear and cage error, holding geometry stable for life.
  • Direct-drive torque motor (e.g., 485SJM-1350BH, 1350/2400 N·m) eliminates gear/belt transmission error and backlash.
  • Closed-loop feedback via a Heidenhain RCN2380 rotary encoder continuously corrects position.

Why Together

Each alone helps; together they remove the three main error sources—support, transmission, and measurement—so the table holds ±0.001 mm run after run.

Applications

Optical aspheric machining, gear cutting, aerospace indexing, and precision measurement all rely on this accuracy.