Medium-Type High Precision External Cylindrical Grinding Machine

Product Description

Medium-type High Precision External Cylindrical Grinding Machine
G-320B G-320C

Main Functions and Features:
1. The cylindrical grinding machine is designed on the basis of G-320 cylindrical grinding machine. It is suitable for grinding cylindrical or conical parts, for its accuracy IT6-IT5.
2. Worktable longitudinal travel driven by hydraulic at infinitely-variable-speed, or driven by handwheel. Lubrication for hole throttle unloading from.
3. Wheelhead cross travel provided with hydraulic rapid advance and with drawal, manual microfeed. And feed grinding wheel automatic cycle function.
4. Workpiece, wheel, oil pump and coolant pump respectively driven by their individual motor.
5. Two sets of silding bearing consisting of four-shoes used as wheel spindle bearings. The spindle bold, increased motor, high grinding efficiency.
6. Wheel dresser mounted on the tailstock, and hydraulic tailstock top back device.
7. The machine with the moving parts of electrical, hydraulic chain, safe and reliable operation.
8. G-320C series table moves using hydrostatic guideway.

Main Accessories:
*Complete set of electric equipment
*Wheel peripheral dresser
*Wheel balancing mandrel
*Leveling wedge
*Complete set of coolant equipment
*Wheel flanges
*Open trpe steady rest
Extra Accessories:
*Wheel balancing stand
*End-face dresser

Technical Parameters

Specifications	Units	G-320B	G-320C
Grinding length	mm	1000/1500/2000/3000	2000/3000
Grinding diameter	mm	Φ8-Φ320	Φ8-Φ320
Center height	mm	180	180
Max. workpiece weight	kg	150	500
Worktable speed	m/min	0.1-4	0.1-4
Wheel peripheral velocity	m/s	35	35
Max. travel of worktable	mm	1100/1600/2100/3100	2100/3100
Swivel range of worktale	°	-3- +7/-3- +6/-2- +5/-2- +3	-2- +5/-2- +3
External wheel size	mm	Φ600*75*Φ305	Φ600*75*Φ305
Spindle speed of workhead	rpm	26,52,90,130,180,260
Grinding spindle speed	rpm	1100	1100
Headstock top		No.5	No.5
Tailstock top		No.4/No.5	No.5
Rapid advance and with drawal amount	mm	50	50
Wheelhead displacement per rev of handwheel(rough/fine)	mm	2/0.5	2/0.5
Wheelhead displacement per div of handwheel(rough/fine)	mm	0.01/0.0025	0.01/0.0025
Roundness	um	1.5(≤1500) 2.5(>1500)	1.5(≤1500) 2.5(>1500)
Uniformity of dia. in longitudinal section	um	5(≤750) 8(>750)	5(≤750) 8(>750)
Surface waviness	um	1	1
Surface roughness	um	Ra0.16	Ra0.16
Total motor power	kw	14.27	14.27
Machine dimensions(L*W*H)	mm	3605/4605/5605/7605*1810*1510	5605/7605*1810*1515
Machine weight	kg	4000/4600/6600/8600	6600/8600

TO G-320B and G-320C difference:G-320B adopts standard guideway; G-320C adopts hydrostatic guideway.
The foundation depth depends upon the soilproperties, but it should be less than 400mm. Our Advantages
1. Free replacing parts available in the warranty period. Cost price replacing parts available beyond the warranty period.
2. Quick action and reply for the technical questions at any time in the whole life of the machine.
3. Overseas after service center available in some region.
4. Engineer overseas service available on the requirement of customer(relative cost born by customer).
Packaging & Shipping
Company Profile
Timeway Machine Tool Co., Ltd. is a professional machine tool manufacturing enterprises, the main products include lathe, milling machine, grinding machine, etc., and according to customer needs we also can design and manufacture various special purpose machines, to provide relative technology upgrading and transformation services in machine tool field.
Since the establishment of the Ministry of Foreign Trade, we have participated in various domestic and international exhibitions such as the Autumn Canton Fair, Beijing Exhibition, Shanghai Exhibition, Moscow, Ethiopia, and Russia, and have maintained long-term friendly cooperative relations with exhibition customers.
Customer visited
So far, we have received many customers from abroad, and they are all very satisfied with our company and products
The following is one of the most satisfactory products recommended by customers, as well as our main product categories. you can click and view

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FAQ
Q: Why choose TIMEWAY MACHINE?
A: 1 . High quality with competitive price;
2 . Professional R&D team and 25 years export experience;
3 . Exported more than 60 countries;
4 . CE, ISO Certificates;
5 . 24 HOURS ONLINE SERVICE (SKYPE, WhatsApp, Wechat, Trademanager);
6 . 12 months quality warranty;
7 . Oversea engineers available for problem resolving;
Q: Do you have QC or any safety standards for your machinery?
A: yes, we have established a highly strict quality control department to guanrantee good quality.
Q: What's the MOQ?
A: 1 set (Only some low cost machines will be more than 1 set )
Q: What about the payment terms?
A: (1) T/T with 30% advanced payment, and 70% balance payment to be paid before shipment;
(2) Irrevocable LC at sight;
(3) Western Union, MoneyGram, etc.
Q: How about the warranty?
A: Warranty Period is one year after delivery. Even beyond the period, we will supply lifetime service for machine.