2. Accuracy specification
Min. pulling rate0.1 mm/h
Pulling system jump: 0.001 mm (max. value measured at pulling rate of 1mm/h)
Scale display resolution: 10 mg
IF generator controlling accuracy: 0.1%
Vacuum5 Pa

3. Environment requirement
1. Power supply: three-phase five-line, 50MHz 380v+/-10%, 50Kw
2. Mounting space height3.5m
3. The main body of this equipment should be installed on a solid floor base surrounded by vibration-isolated facilities. Vibration transmitted from outside to the equipment should be less than 5um.
4. Cooling water: de-ionized water at flow rate ≥80L/min, pressure≥0.3MPa, temperature 24+/-1.5℃, temperature fluctuation rate ≤1℃ /H;
5. Ambient temperature: 24+/-1.5℃, temperature fluctuation rate ≤1℃ /H, humidity＜70%

III. Main Components

IV. Technical Support
1. Offer training courses on equipment operation and installation to operator and maintenance personnel
2. Offer training courses on equipment control and structure principles;
3. Offer training courses on how to use software;
4. Offer training courses on trouble-shooting
5. One-year warranty
6. Other requirements are subject to the Contract terms;
7. Offer lifetime maintenance service (cost to be paid by the buyer);

V. Supply of complete system
1. A complete set of single crystal grower (standard configuration) includes:
a.Main body: mounting rail, vacuum furnace chamber ￠600x1000mm, puller travel distance 550mm, weight measurement system , pulling and rotating motors, vacuum sealed metal bellow, encoder, a flow meter, an air pressure measurement and control unit, seed holder (OD￠8mm), centering mechanism, water flow sensor etc.
b.Control cabinet: Industry-oriented computer (19" liquid crystal display), on-line UPS power, pulling and rotating driver control, alarm system, vacuum measurement meter, encoder display, manual control box, low voltage power supplies and press keys;
c.IF generator, adapter and inductive coil;
d.Vacuum unit: 12L/S mechanical pump, vacuum valve and vacuum measurement system;

VI. Technical Document
A set of operating instruction manual should be provided by the Seller.

VII. Payment Term
40% of total amount shall be paid within 10 working days after the contract is signed by both the buyer and the seller. The balance of 60% shall be settled when pre-acceptance is completed.

VIII. Delivery, Packing & Transportation
1. Delivery time: The Contract will become effective when down payment is received by the Seller. Delivery shall be effected within 4 months after the contract becomes effective. The date on which pre-acceptance is completed at Seller's site shall be regarded as the date of delivery.

2. Packing & transportation:
The equipment shall be packed in strong non-solid wood cases suitable for hoisting and long distance transportation by road, rail, air or sea.