Investment Casting & Sand Casting Foundry

Castings of Stainless Steel, Alloy & Carbon Steel, Cast Iron, etc.

Stainless Steel Centrifugal Pump Closed Impeller by Lost Wax Investment Casting

Short Description:

OEM custom stainless steel centrifugal pump closed impeller by lost wax investment casting process from China casting foundry. Available inspection methods: dimension testing by CMM, non-destructive testing, chemical composition, mechanical properties, hardness testing, static balancing, dynamic balancing, air pressure and water pressure. 

 

Metals: CF8M / AISI316 / 1.4408 Stainless Steel
Manufacturing: Investment Casting + CNC Machining
Application: Centrifugal Pump Closed Impeller
Heat Treatment: Annealing, Solution
Surface Treatment: Shot Blasting 
Weight: 9.80 kg
Available Testing: Dynamic Balancing

 

 


Product Detail

Product Tags

RMC is a China stainless steel casting foundry to have the stainless steel castings machined as per your drawings and requirements, used for centrifugal pump closed impeller.

CNC machining refers to the machining process proceed by Computerized Numberical Control (CNC for short). It is aided by the CNC to reach a high and steady accuracy with less labor cost. Machining is any of various processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process. The processes that have this common theme, controlled material removal, are today collectively known as subtractive manufacturing, in distinction from processes of controlled material addition, which are known as additive manufacturing.

China precision stainless steel casting company

Exactly what the “controlled” part of the definition implies can vary, but it almost always implies the use of machine tools (in addition to just power tools and hand tools). This is a process used to manufacture many metal products, but it can also be used on materials such as wood, plastic, ceramic, and composites. The CNC machining covers many different processes such as milling, turning, lathing, drilling, honing, grinding...etc.

casting pump and valve spare parts

 

CNC Precision Machining Capabilities
Facilities Quantity Size Range Annual Capacity General Accuracy
Vertical Machining Center (VMC) 48 sets 1500mm × 1000mm × 800mm 6000 tonn or 300000 pieces ±0.005
Horizontal Machining Center (VMC) 12 sets 1200mm × 800mm × 600mm 2000 tons or 100000 pieces ±0.005
CNC Machine 60 sets Max turning dia. φ600mm 5000 tons or 600000 pieces   
Excutive Standard of Casting Tolerance: ISO 8062 2013, ISO 2768, GOST 26645 (Russia) or GBT 6414 (China).

The machining center is developed from the CNC milling machine. The biggest difference from the CNC milling machine is that the machining center has the ability to automatically exchange machining tools. By installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed by the automatic tool changer in one clamping to realize multiple machining features.

The CNC machining center is a high-efficiency automated machine tool that is composed of mechanical equipment and a CNC system and is suitable for processing complex parts. The CNC machining center is currently one of the most widely used CNC machine tools in the world with strong comprehensive processing ability. It can complete more processing content after the workpiece is clamped at one time. The processing accuracy is high. For batch workpieces with medium processing difficulty, its efficiency is 5-10 times that of ordinary equipment, especially it can complete Many processings that cannot be completed by ordinary equipment are more suitable for single-piece processing with more complex shapes and high precision requirements or for small and medium batch production of multiple varieties. It concentrates the functions of milling, boring, drilling, tapping and cutting threads on one device, so that it has a variety of technological means.

China CNC Machining Services Supplier

Machining centers are classified into horizontal and vertical machining centers according to their spatial position during spindle machining. Classified according to process use: boring and milling machining center, compound machining center. According to the special classification of functions, there are: single workbench, double workbench and multi-workbench machining center. Machining centers with single-axis, dual-axis, three-axis, four-axis, five-axis and interchangeable headstocks, etc.

CNC machining is the kind of precision machining by CNC machines such as advanced machining centers which have top end 5 axis machining center, 4 axis double platform machining center, or CNC turning lathes which can also be developed to CNC turning center having capability of changing more than 15 cutters within one holding shift; CNC milling machine and CNC drilling and tapping centers.Precision machining of steel casting is different from machining of steel profile. Precision casting has already achieve quite exact shape of what is desired, thus it saves lots of machining compared with machining from steel profile directly. Also because of this reason, we usually have to consider machining surface and proper machining allowance before casting. Our regular procure is to work out raw casting drawing along with machining drawing to specify machining area and machining allowance on the drawing.

RMC investment casting foundry has equipped with 4 axis machining centers, 15 sets of CNC turning lathes and 3 sets of cnc milling machines, along with assistant common versatile turning, milling, tapping, drilling and grinding machines, we have the capability of machining nearly all kinds of steel castings.

Equivalent Grade of Cast Alloy Steel from Different Markets
GROUPS AISI W-stoff DIN BS SS AFNOR U.N.E. / I.H.A. JIS UNI
Low Alloy Steel 9255 1.0904 55 Si 7 250 A 53 2090 55 S 7 56Si7 - 5SSi8
1335 1.1167 36 Mn 5 150 M 36 2120 40 M 5 36Mn5 SMn 438(H) -
1330 1.1170 28 Mn 6 150 M 28 - 20 M 5 - SCMn1 C28MN
P4 1.2341 X6 CrMo 4 - - - - - -
52100 1.3505 100 Cr 6 534 A 99 2258 100 C 6 F.131 SUJ 2 100Cr6
A204A 1.5415 15 Mo 3 1501 240 2912 15 D 3 16 Mo3 STBA 12 16Mo3 KW
8620 1.6523 21 NiCrMo 2 805 M 20 2506 20 NCD 2 F.1522 SNCM 220(H) 20NiCrMo2
8740 1.6546 40NiCrMo22 311-Type 7 - 40 NCD 2 F.129 SNCM 240 40NiCrMo2(KB)
- 1.6587 17CrNiMo6 820 A 16 - 18 NCD 6 14NiCrMo13 - -
5132 1.7033 34 Cr 4 530 A 32 - 32 C 4 35Cr4 SCr430(H) 34Cr4(KB)
5140 1.7035 41 Cr 4 530 A 40 - 42 C 2 42 Cr 4 SCr 440 (H) 40Cr4
5140 1.7035 41 Cr 4 530 A 40 - 42 C 2 42 Cr 4 SCr 440 (H) 41Cr4 KB
5140 1.7045 42 Cr 4 530 A 40 2245 42 C 4 TS F.1207 SCr 440 -
5115 1.7131 16 MnCr 5 (527 M 20) 2511 16 MC 5 F.1516 - 16MnCr5
5155 1.7176 55 Cr 3 527 A 60 2253 55 C 3 - SUP 9(A) 55Cr3
4130 1.7218 25 CrMo 4 1717CDS 110 2225 25 CD 4 F.1251/55Cr3 SCM 420 / SCM430 25CrMo4(KB)
4135 (4137) 1.7220 35 CrMo 4 708 A 37 2234 35 CD 4 34 CrMo 4 SCM 432 34CrMo4KB
4142 1.7223 41 CrMo 4 708 M 40 2244 42 CD 4 TS 42 CrMo 4 SCM 440 41 CrMo 4
4140 1.7225 42 CrMo 4 708 M 40 2244 40 CD 4 F.1252 SCM 440 40CrMo4
4137 1.7225 42 CrMo 4 708 M 40 2244 42 CD 4 F.1252 SCM 440 42CrMo4
A387 12-2 1.7337 16 CrMo 4 4 1501 620 2216 15 CD 4.5 - - 12CrMo910
- 1.7361 32CrMo12 722 M 24 2240 30 CD 12 F.124.A - 30CrMo12
A182 F-22 1.7380 10 CrMo9  10 1501 622 2218 12 CD 9, 10 F.155 / TU.H - 12CrMo9 10
6150 1.8159 50 CrV 4 735 A 50 2230 50 CV 4 F.143 SUP 10 50CrV4
- 1.8515 31 CrMo 12 722 M 24 2240 30 CD 12 F.1712 - 30CrMo12
- - - - - - - - -
Medium Alloy Steel  W1 1.1545 C105W1 BW1A 1880 Y 105 F.5118 SK 3 C100 KU
L3 1.2067 100Cr6 BL 3 (2140) Y 100 C 6 F.520 L - -
L2 1.2210 115 CrV 3 - - - - - -
P20 + S 1.2312 40 CrMnMoS 8 6 - - 40 CMD 8 +S X210CrW12 - -
- 1.2419 105WCr6 - 2140 105W C 13 F.5233 SKS 31 107WCr5KU
O1 1.2510 100 MnCrW 4 BO1 - 90MnWCrV5 F.5220 (SK53) 95MnWCr5KU
S1 1.2542 45 WCrV 7 BS1 2710 55W20 F.5241 - 45WCrV8KU
4340 1.6582 34 CrNiMo 6 817 M 40 2541 35 NCD 6 F.1280 SNCM 447 35NiCrMo6KB
5120 1.7147 20 MnCr 5 - - 20 MC 5 - - -
- - - - - - - - -
Tool and High Alloy Steel D3 1.2080 X210 Cr 12 BD3 2710 Z200 C 12 F.5212 SKD 1 X210Cr13KU
P20 1.2311 40 CrMnMo 7 - - 40 CMD 8 F.5263 - -
H13 1.2344 X40CrMoV 5 1 BH13 2242 Z 40 CDV 5 F.5318 SKD 61 X40CrMoV511KU
A2 1.2363 X100 CrMoV 5 1 BA2 2260 Z 100 CDV 5 F.5227 SKD 12 X100CrMoV51KU
D2 1.2379 X155 CrMoV 12 1 BD2 2310 Z 160 CDV 12 F.520.A SKD11 X155CrVMo121KU
D4 (D6) 1.2436 X210 CrW 12 BD6 2312 Z 200 CD 12 F.5213 SKD 2 X215CrW121KU
H21 1.2581 X30WCrV9 3 BH21 - Z 30 WCV 9 F.526 SKD5 X30WCrV 9 3 KU
L6 1.2713 55NiCrMoV 6 - - 55 NCDV 7 F.520.S SKT4 -
M 35 1.3243 S6/5/2/5 BM 35 2723 6-5-2-5 F.5613 SKH 55 HS6-5-5
M 2 1.3343 S6/5/2 BM2 2722 Z 85 WDCV F.5603 SKH 51 HS6-5-2-2
M 7 1.3348 S2/9/2 - 2782 2 9 2 - - HS2-9-2
HW 3 1.4718 X45CrSi 9 3 401 S 45 - Z 45 CS 9 F.3220 SUH1 X45CrSi8
- 1.7321 20 MoCr 4 - 2625 - F.1523 - 30CrMo4
High Tensile Strength Steel A128 (A) 1.3401 G-X120 Mn 12 BW10 2183 Z 120 M 12 F.8251 SCMnH 1 GX120Mn12

Capabilities of Investment Casting Foundry:
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg - 100 kg
• Annual Capacity: 2,000 tons
• Bond Materials for Shell Building: Silica Sol, Water Glass and their mixtures.
• Tolerances: On Request.

Advantages of Investment Casting Components:
- Excellent and smooth surface finish
- Tight dimensional tolerances.
- Complex and intricate shapes with design flexibility
- Capability to cast thin walls therefore a lighter casting component
- Wide selection of cast metals and alloys (ferrous and non-ferrous)
- Draft is not required in the molds design.
- Reduce the need for secondary machining.
- Low material waste.

 

Materials for Investment Casting and CNC Machining at RMC Foundry
Category China Grade US Grade Germany Grade
Ferritic Stainless Steel 1Cr17, 022Cr12, 10Cr17,  430, 431, 446, CA-15, CA6N, CA6NM 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4
Martensitic Stainless Steel 1Cr13, 2Cr13, 3Cr13, 4Cr13,  410, 420, 430, 440B, 440C 1.4021, 1.4027, 1.4028, 1.4057, 1.4059, 1.4104, 1.4112, 1.4116, 1.4120, 1.4122, 1.4125
Austenitic stainless steel 06Cr19Ni10, 022Cr19Ni10,
06Cr25Ni20, 022Cr17Ni12Mo2, 03Cr18Ni16Mo5
302, 303, 304, 304L, 316, 316L,   329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN 1.3960, 1.4301, 1.4305, 1.4306, 1.4308, 1.4313, 1.4321, 1.4401, 1.4403, 1.4404, 1.4405, 1.4406, 1.4408, 1.4409, 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581,
1.4582, 1.4584, 
Precipitation Hardening Stainless Steel 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb 630, 634, 17-4PH, 15-5PH,  CB7Cu-1 1.4542
Duplex Stainless Steel 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N A 890 1C, A 890 1A, A 890 3A, A 890 4A, A 890 5A,
A 995 1B, A 995 4A, A 995 5A, 2205, 2507
1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770
High Mn Steel ZGMn13-1, ZGMn13-3, ZGMn13-5 B2, B3, B4 1.3802, 1.3966, 1.3301, 1.3302
Tool Steel Cr12 A5, H12, S5 1.2344, 1.3343, 1.4528, GXCrMo17,   X210Cr13, GX162CrMoV12
Heat Resistant Steel 20Cr25Ni20, 16Cr23Ni13,
45Cr14Ni14W2Mo
309, 310, CK20, CH20, HK30 1.4826, 1.4828, 1.4855, 1.4865
Nickle-base Alloy   HASTELLY-C, HASTELLY-X,  SUPPER22H, CW-2M, CW-6M, CW-12MW, CX-2MW, HX(66Ni-17Cr), MRE-2, NA-22H, NW-22,  M30C, M-35-1, INCOLOY600,
INCOLOY625
2.4815, 2.4879, 2.4680
Aluminum
Alloy
ZL101, ZL102, ZL104 ASTM A356, ASTM A413,  ASTM A360 G-AlSi7Mg, G-Al12
Copper Alloy H96, H85, H65, HPb63-3,
HPb59-1, QSn6.5-0.1, QSn7-0.2
C21000, C23000, C27000, C34500, C37710, C86500,  C87600, C87400, C87800,  C52100, C51100 CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5
Cobalt-base Alloy   UMC50, 670, Grade 31 2.4778

Also called precision machining, the CNC machining could reach a very high accuracy in geometical tolerance and dimensional tolerance. With our CNC machines and Horizontal Machining Centers (HMC) and Vertical Machining Centers (VMC), we can almost meet all of your required tolerance grades. 

 

INVESTMENT CASTING TOLERANCES
Inches Millimeters
Dimension Tolerance Dimension Tolerance
Up to 0.500 ±.004" Up to 12.0 ± 0.10mm
0.500 to 1.000” ±.006" 12.0 to 25.0 ± 0.15mm
1.000 to 1.500” ±.008" 25.0 to 37.0 ± 0.20mm
1.500 to 2.000” ±.010" 37.0 to 50.0 ± 0.25mm
2.000  to 2.500” ±.012" 50.0 to 62.0 ± 0.30mm
2.500 to 3.500” ±.014" 62.0 to 87.0 ± 0.35mm
3.500 to 5.000” ±.017" 87.0 to 125.0 ± 0.40mm
5.000 to 7.500” ±.020" 125.0 to190.0 ± 0.50mm
7.500 to 10.000” ±.022" 190.0 to 250.0 ± 0.57mm
10.000 to 12.500” ±.025" 250.0 to 312.0 ± 0.60mm
12.500 to 15.000 ±.028" 312.0 to 375.0 ± 0.70mm
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