Caterpillar 308 CR(Fixed Boom) Excavator Attachments Alternatives

The Caterpillar 308 CR (Fixed Boom) excavator is an 8.4-9.1 ton mini excavator manufactured by Caterpillar. It is primarily used for operations in confined spaces such as narrow urban pipelines, garden renovations, and cable trenches. It has an operating weight of 8,440-9,105 kg. It is equipped with a liquid-cooled Cat C3.3B engine with a rated power of 52.4 kW and a displacement of 3.3 L. The hydraulic system’s main pump has a maximum flow rate of 167 L/min. Its main dimensions are 6,450 × 2,300 × 2,541 mm, with a maximum digging depth of 4,643 mm and a maximum dump height of 5,072 mm. The travel system supports two-speed switching, with a maximum speed of 5.1 km/h and a fuel tank capacity of 147 L.

Net Power

69.5 hp

Operating Weight

17695 lb

Dig Depth

185 in

From compact 1-ton excavators to heavy 80-ton giants, RAY attachments integrate effortlessly with skid steer loaders and excavators across global brands. Whether you’re breaking concrete with a hydraulic breaker, sorting materials with a grapple, or switching tools with a quick coupler, RAY provides durable, high-performance attachments for every task.

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Common Caterpillar 308 CR(Fixed Boom) Attachments Alternatives

RAY Hydraulic Breaker

Compatible Hydraulic Breaker models

RAY Hydraulic rock breakers for concrete and stone fragmentation. Widely used in mining, construction, and quarrying.

  • High precision matching ensures stable, durable striking power and durability.
  • Precise grinding ensures tolerance under 0.01mm, maintaining strong striking power.
  • Liquid nitrogen cooling ensures a tight, wear-resistant, damage-preventing match.
ItemUniteRHB100
Total WeightSide(Kg)761
Top(Kg)866
Box(Kg)1007
OperatingKg/cm²150-170
PreasurePsi2130-2414
Oil FlowI/min80-110
Gpm21.1-29.1
Impact Frequencybpm350-700
Dia.of Hosemm19.05
inch3-4
Chiselmm100
Diameterinch3.94
Chiselmm1055
Lengthinch41.54
Chisel WeightKg57
Suitablelbs/pounds22046-33069
ExcavatorTon10.0-15.0

RAY Demolition Grapple

Demolition Grapple models

Heavy-duty demolition and sorting grapples for grabbing and breaking concrete debris. Critical for demolition, recycling, and waste handling.

  • 100% imported Parker motors guarantee a strong core.
  • Hardox material ensures wear resistance and durability.
  • 5-in-1 functions to meet your various projects.
ModelUnitRCG-04
Carrier WeightTon6-10
Lbs/Pounds13228～22046
Cylinder Max Working PressureBar350
Psi5076
Cylinder Working Oil FlowL/min15-30
Gpm4-8
Safety Valve/N
Motor Max Working PressureBar100
Motor Working Oil FlowL/min8-12
Rotation SystemTr/min10-15
ForceN25000
Amm1290
Bmm960
Cmm910
Dmm930
Lmm550
VolumeL147
WeightKg370
Lbs/Pounds816

RAY Log Grapple

Log Grapple models

Specialized forestry log grapples to lift and transport logs securely. Optimized for timber yards and logging operations.

  • The safety check valve in cylinder prevents the grabbed material from falling down.
  • Excellent abrasion resistance NM400 and high gradient prolong its life.
  • Multi purpose application.
  • Safe grab even in high speed or sudden stop.
ModelUnitRLG1400
Excavator weightTon5-7
Lbs/Pounds10000 – 14000
WeightKg139
(Without motor)Lbs/Pounds306
WeightKg169
(With motor)Lbs/Pounds373
Working pressureBar210
Max loadKg2000
Lbs/Pounds4409
Max clamp powerKN14
MateriaMaterial NM400
Rotation motorModel50F
Oil hoseinch3-8

RAY Auger

Auger models

High-efficiency excavator auger drills for precise hole digging in soil, gravel, and soft rock. Ideal for construction & landscaping.

  • 100% top brand hydraulic motor Danfoss or Parker.
  • Proven gearbox production process same as the high-speed railway used.
  • 18 months warranty for the entire auger drive.
  • Robust welding technology eliminates cracking risks.
  • Shot blasting treatment removes internal stress and enhances durability.
  • Interchangeable parts with in-house production, traceable manufacturing codes
ModelUnitREA7000
Carrier WeightT7～10
Lbs/Pounds15432～22046
Working PressureBar80~240
Psi1160~3481
Working Oil FlowL/min61～121
Gpm16～32
TorqueN.m2310~6931
Rotary Speedrpm37～72
Hydraulic HoseInch3/4
Output ShaftmmФ75
Unit WeightKg112
Lbs/Pounds247
Unit Heightmm850
Unit Max Dia.mm269
Auger SeriesS5
Auger Lengthmm1500
Auger Dia. Rangemm150～900

Multi Quick Hitch

Multi Quick Hitch models

Double-locking quick hitches for fast tool changes. Enhances excavator versatility and reduces downtime.

  • Triple-lock design ensures reliability and security.
  • Fully automated operation eliminates the need to leave the driver’s seat.
  • Slide safety system matches various attachments widely.
ModelUnitRQH04D
CarrierT6~8
lbs/pounds13200~17600
Pin Diametermm50/55
inch1.97/2.17
C-to-C Distancemm262~320
inch10.31~12.6
Arm Widthmm185~220
inch7.28~8.66
Oil PressureBar40~205
Psi580~2973
Oil FowL/min10~20
Gpm2.64~5.28
Hosemm6.35
Inch1-4
Unit WeightKg97
lbs/pounds213.4
Lengthmm655
inch25.79
Widthmm312
inch12.28
Heightmm335
inch13.19

Tilting Quick Hitch

Tilting Quick Hitch models

Hydraulic tilting hitches for angled tool operation. Provides 140-180° flexibility for complex terrain tasks.

  • 140-180° tilt angle make the project operate flexibly even in the tight spaces.
  • Triple-lock design ensures reliability and security.
  • Fully automated operation eliminates the need to leave the driver’s seat.
ItemModelUnitRQH04T
Tilting quick hitchExcavatorT6~10
lbs/pounds13200~22000
WeightKG250
lbs/pounds550
Size(L*W*H)mm700*310*655
Inch27.56*12.20*25.79
CylinderMax pressureBar200
Psi2900
Operation flowL/min10-20
Gpm2.6-5.2
Tilting CylinderMax pressureBar210
Psi3046
Oil flowL/min15-20
Gpm3.9-5.3
Tilt Angle°180
Tilt TorqueN.m7000
Remaining TorqueN.m20000

Hydraulic Quick Hitch

Hydraulic Quick Hitch models

Hydraulic-powered Quick couplers for secure, rapid tool attachment. Improves excavator efficiency on-site.

  • Free type with wider cylinder stroke, fit to wider excavator range.
  • 100% match your excavator pin size.
  • High precision (tolerance can be 0.18μm).
  • Blasting process with perfect welding.
ModelUnitRQH-04
Suitable CarrierT7-8
lbs/pounds15400-17600
LengthLmm600
Inch23.63
HeightHmm310
Inch12.2
WidthWmm270-280
Inch10.63-11.02
Pin to Pin DistanceA1mm290-360
Inch11.42-14.17
Arm WidthW1mm180-200
Inch7.09-7.87
Distance Between Up and Bottom PinH1mm195
Inch7.68
Pin DiameterDmm50/55
Inch1.97/2.17
Weightkg120
lbs/pounds264
Working PressureKgf/cm²40-380
Oil Flowl/m10-20
Gpm2.64-5.28

excavator brands & Models

ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Mini0.9 – 10.42061 – 23002300.9D, 300.9D VPS & HPU300, 301.5, 301.6, 301.7 CR, 301.8, 302 CR, 302.7 CR, 303 CR, 303.5 CR, 304, 305 CR, 306 CR, 306 CR VAB, 307.5 – Tier 4 / Stage V, 308 CR, 308 CR (Fixed Boom), 308 CR VAB, 309 CR, 309 CR VAB (Long Undercarriage), 310 – Tier 4 / Stage V
Small13.8 – 18.430400 – 40500313 GC – Tier 4 / Stage V, 313, 315 GC, 315, 317 GC, 317
Medium22 – 34.948500 – 77000320 – Tier 4 / Stage V, 320 GC – Tier 4 / Stage V, 323 – Tier 4 / Stage V, 325 – Tier 4 / Stage V, 326 – Tier 4 / Stage V, 330 – Tier 4 / Stage V, 330 GC – Tier 4 / Stage V, 335 – Tier 4 / Stage V
Large36.8 – 96.381100 – 212300336 – Tier 4 / Stage V, 340 – Tier 4 / Stage V, 350 – Tier 4 / Stage V, 352 – Tier 4 / Stage V, 374 – Tier 4 / Stage V, 395 – Tier 4 / Stage V, 395 Front Shovel (FS) – Tier 4 / Stage V
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Medium16.4 – 53.232,850 – 106,370R 914 Compact Litronic, R 920 Compact Litronic, R 918 Litronic, R 922 Litronic, R 924 Litronic, R 926 Compact Litronic, R 926 Litronic, R 928 Litronic, R 930 Litronic, R 936 Compact Litronic, R 934 Litronic, R 938 Litronic, R 945 Litronic
Heavy58.5- 114.9117,065 – 229,720R 956 Litronic, R 960 SME Litronic, R 972 Litronic, R 978 SME Litronic, R 992 Litronic, R 992 E, R 998 SME Litronic, R 998 SME E
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Compact1.7 – 9.53748 – 20944ECR88D, EW60E, EC60E, ECR58, ECR50, ECR40, EC37, EC27D, ECR25D, EC20E, ECR18E
Medium Wheeled12.9 – 26.028440 – 57300EW240E Material Handler, EW220E, EW200E Material Handler, EW180E, EWR170E, EW160E, EWR150E, EWR130E
Medium Crawler13.1 – 27.928880 – 61453ECR235E, EC230, EC220E, EC210, EC200E, EC160E, ECR145E, ECR145, EC140E
Large Crawler26.0 – 94.857342 – 208998EC950F, EC750E, EC550E, EC530E, EC500 Hybrid, EC500, EC480E, EC400 Hybrid, EC400, EC380E Hybrid, EC380E, EC370 Hybrid, EC370, ECR355E, EC350E, EC300 Hybrid, EC300E Hybrid, EC300E, EC300, EC260 Hybrid, EC260, EC250E Hybrid, EC250E
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Mini0.9 – 5.61,940 – 12,434PC09-1, PC16R-3, PC17R-5, PC18MR-5, PC20R-5, PC20E-6, PC24MR-5, PC26MR-5, PC30MR-5, PC33MR-5, PC33E-6, PC35MR-5, PC38MR-5, PC45MR-5, PC50MR-5, PC55MR-5, PC58MR-5
Midi8 – 27.517,637 – 60,627PC80MR-5, PC88MR-11, PW98MR-11, PW138MR-11, PW148-11, PW158-11, PW160-11, PW168-11, PW180-11, PW198-11, PC170LC-11, PC210/LC/NLC-11, PC220LC-12, PC230NHD-11, PC240LC/NLC-11
Heavy29.9 – 118.365,918 – 260,807PC290LC/NLC-11, PC360LC/NLC-11, PC490/LC-11, PC700LC-11, PC950LC-11, PC1250-11
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Mini0.95 – 9.82,094 – 21,4958008 CTS, 8008E, 8010 CTS, 16C-1, 18Z-1, 19C-1, 19C-1E, 25Z-1, 26C-1, 35Z-1, 36C-1, 50Z-2, 56Z-2, 60C-2, 85Z-2, 86C-2, 90Z-2, 100C-2
Mid14.8 – 39.932,670 – 87,940131X, 140X, JS145W, 150X, 145XR, JS160W, JS175W, JS160, JS180, JS20MH, 220X, 245XR, 370X
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Compact1.7 – 9.03,790lb – 19,800lbZX17U-5N, ZX26U-5N, ZX30U-5N, ZX35U-5N, ZX50U-5N, ZX60USB-5N, ZX65USB-5A, LA, ZX75US-5N, ZX75US-7, ZX85USB-5N, ZX85USB-7
Large12.8 – 85.828,219lbs – 189,157lbZX130-5G, LA, ZX130-5B, LA, ZX130-6, ZX130-7H, ZX130-7H, LA, ZX135US-6, ZX135US-7H, ZX160LC-6, ZX160LC-7H, ZX190LC-7H, ZX200LC-5G, LA, ZX210LC-5B, LA, ZX210LC-6, ZX210LC-7H, ZX210LC-7H, LA, ZX240LC-5G, LA, ZX245USLC-6, ZX245USLC-7H, ZX250LC-6, ZX250LC-7H, ZX280LC-5G, LA, ZX300LC-6, ZX300LC-7H, ZX300LC-7H, LA, ZX345USLC-6, ZX345USLC-7H, ZX350LC-5B, LA, ZX350LC-6, ZX350LC-7G, LA, ZX350LCH-7G, LA, ZX350LC-7H, ZX490LC-6, ZX490LC-7H, ZX490LC-7G, LA, ZX490LCH-7G, LA, ZX690LC-6, ZX690LC-7H, ZX890LC-6, ZX890LC-7H
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Mini2.1 – 12.64211 – 25221DX17Z-7, DX27Z-7, DX35Z-7, DX42-7, DX50Z-7, DX55R-7, DX62R-7, DX63-7, DX89R-7, DX100W-7
Large15.9 – 110.631746 – 221280DX140LC-7K, DX140LCR-7, DX140W-7, DX170LC-5, DX180LC-5, DX190W-7, DX200LC-7, DX210W-7, DX225LC-7, DX225LC-7X, DX235LCR-7, DX255LC-7, DX300LC-7, DX350LC-7, DX350LCR-7, DX420LC-7, DX490LC-7, DX530LC-7, DX800LC-7, DX1000LC-7
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Compact2.0 – 10.03,920 Ibs – 20,040 IbsHX17AZ, HX27AZ, HX35AZ, HX40A, HX48AZ, HX55ACR, HX60A, HX85A, HX90A, R17Z-9A, R25Z-9AK, R30Z-9AK, R35Z-9A, R55-9A, R55W-9A, R60CR-9A, R80CR-9A
Large11.8 – 110.123,589 lbs – 220,282 lbsHW100A, HW140A, HW160A, HW170A CR, HW210A, HX130A LCR, HX140A L, HX145A LCR, HX160A L, HX180A L, HX210A L, HX220A L, HX220A LR, HX235A LCR, HX260A L, HX300A L, HX300A LR, HX350A L, HX355A LCR, HX380A L, HX480A L, HX520A L, HX800A L, HX1000A L
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Compact1.3 – 9.82593 – 19600E88 (Long-Arm), E35, E48, E60, E20, E19e, E55, E40, E26, E38, E32, E10, E10e
Large17.5 – 28.534946 – 56908E145, E165, E220, E245

Compatible attachments models

Bobcat ModelHydraulic BreakerDemolition GrappleLog GrappleAugerMulti Quick HitchTilting Quick HitchHydraulic Quick Hitch
E88 (Long-Arm)RHB85RCG-04N/AREA7000 / REA8000RQH04M / RQH04DRQH04TRQH-04
E35RHB53RCG-01RLG1200REA3500 / REA4500RQH01DRQH01TRQH-02
E48RHB68RCG-02RLG1200REA4500 / REA5000RQH02M / RQH02DRQH02TRQH-02
E60RHB68 / RHB75 / RHB80RCG-04RLG1400REA5000 / REA6000RQH02M / RQH02DRQH02TRQH-02
E20RHB40 / RHB45RCG-miniRLG1000 / RLG1200REA2000 / REA2500RQH01DRQH01TRQH-MINI
E19eRHB40 / RHB45RCG-miniRLG1000 / RLG1200REA2000 / REA2500RQH01DRQH01TRQH-MINI
E55RHB68RCG-02RLG1400REA5000 / REA6000RQH02M / RQH02DRQH02TRQH-02
E40RHB68RCG-02RLG1200REA4500 / REA5000RQH02M / RQH02DRQH02TRQH-02
E26RHB53RCG-01RLG1200REA3500 / REA4500RQH01DRQH01TRQH-02
E38RHB53RCG-01RLG1200REA3500 / REA4500RQH01DRQH01TRQH-02
E32RHB53RCG-01RLG1200REA3500 / REA4500RQH01DRQH01TRQH-02
E10RHB40 / RHB45RCG-miniRLG1000 / RLG1200REA2000RQH01MRQH01TRQH-MINI
E10eRHB40 / RHB45RCG-miniRLG1000 / RLG1200REA2000RQH01MRQH01TRQH-MINI
E145RHB125RCG-08RLG2000REA20000 / REA25000RQH06DRQH06TRQH-06
E165RHB135 / RHB135G / RHB140 / RHB140ARCG-08RLG2000REA20000 / REA25000RQH08M / RQH08DRQH08TRQH-08
E220N/AN/AN/AREA35000 / REA42000 / REA50000 / REA65000 / REA100000RQH08M / RQH08DRQH08TRQH-08
E245RHB150 / RHB155RCG-14N/AREA35000 / REA42000 / REA50000 / REA65000 / REA100000RQH10MN/ARQH-10
ExcavatorsOperating Weight (tons)Operating Weight (lbs)Models
Tracked Conventional1.0 – 10.52268 – 23184803, ET20, ET42, ET58, ET65, ET90, ET145
Tracked Zero Tail1.7 – 5.93801 – 12910EZ17, EZ26, EZ36, EZ50
Wheeled6.8 – 11.914892 – 26136EW65, EW100

About
RAY Attachments

Founded in 2002, RAY began with the production of steel pipes and evolved into a profound understanding of excavator needs. Initially engaged in trade, we were among the pioneers in bringing Chinese manufacturing excellence to the world and introducing hydraulic breakers to the international market. Our first international client, Mr. Yousaf, came from Qatar in 2009, marking the beginning of many successful collaborations.

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12 months – 36 months (option)


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Quick Response

2 hours response
Provide the solution within 12 hours

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Frequently asked questions

We are a manufacturer. We have over 23 years of experience in manufacturing attachments of excavators and skid steers. Changzhou Raymond International Trading Co., Ltd is our export platform.

We provide 12 months warranty, more details, please contact us.

Our attachments fit 1.5-120 tonnage excavators, covering leading brands such as SANY, XCMG, LIUGONG, ZOOMLION, SUNWARD, CAT, JCB, KOBELO, HITACHI, KOMATSU, DOOSAN, etc. We have over 8 years of experience collaborating with authorized excavator brand distributors globally.

Yes, we provide OEM, please share more details and discuss with us.

Payment≤20000 USD, 100% in advance.

Payment＞20000 USD, 30% T/T in advance, balance after production completed. Or 100%LC at sight.

Normally, 3-5 days after payment.

It takes 20-25 workdays for 2x40ft containers. Sample order in 5 days.

Please tell us which country are your from and what products are you looking for. Because we have some goods in dealer’s warehouse, you can contact us and get their contact number.

We hold ISO 9001:2015 Quality Management System certification and CE compliance for our product range. Additionally, we are an active member of the Association of Equipment Manufacturers (AEM) in the U.S.

Selected attachments utilize high-strength wear-resistant steel and advanced manufacturing processes. Every product undergoes 100% quality inspection to ensure long-term reliability in harsh environments.

We guarantee a 48-hour response time and direct replacement part delivery to resolve problems promptly.

Yes. We offer video tutorials, downloadable operation manuals, and remote diagnostic support.

You need to pass the enterprise qualification review, including business license, industry experience, etc., and sign a cooperation agreement.

The authorization policies in different regions may be different, so you need to contact the corresponding regional business department.

Submit your proposal to our Marketing Department in advance for approval.

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RAY Attachments

5#ChuangSheng Road, Luoyang Industrial Zone, Luoyang town, Wujin Distrial,Changzhou city, Jiangsu Province, China PC. 213104

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