The Bobcat S650 is one of the most common mid-frame skid steers in Canada. Here's exactly what it can run, what needs the high-flow option, and which attachment sizes fit this machine best.
The S650 is a mid-frame wheeled skid steer built on the Bobcat M-Series platform. It was one of Bobcat's top-selling machines in Canada before being replaced by the R-Series S76. These specs are exact factory figures for the S650.
The S650 uses Bobcat's Bob-Tach quick attach system. Bob-Tach's coupler geometry is physically identical to the industry-standard SSQA (Standard Skid Steer Quick Attach), which means:
This matrix covers the full range of skid steer attachments and how they work on the S650. Standard flow = 21.4 GPM, high flow = 34.8 GPM (if equipped).
| Attachment | Compatibility | Notes |
|---|---|---|
| GP Buckets (dirt, gravel, rock) | ✅ YES | 66–72" optimal; 78" max (see widths section) |
| Pallet Forks | ✅ YES | 2,690 lb ROC; 48" forks standard |
| Bale Spears | ✅ YES | Single and double spear; handles large rounds comfortably |
| Auger Drives | ✅ YES | Up to 18" bits in most soil; high-flow auger drives not needed at std flow |
| Dozer / Angle Blades | ✅ YES | 84–96" width optimal for this frame |
| Grapples (root, rock, brush) | ✅ YES | Runs all grapple types; 60–72" widths work well |
| Snow Pushers (box blades) | ✅ YES | 10'–12' optimal; no hydraulics required |
| Power Rakes / Landscape Rakes | ✅ YES | Hydraulic versions run well at 21.4 GPM |
| Landplanes / Box Blades | ✅ YES | 84–96" typical; passive attachment, no flow required |
| Post Drivers (hydraulic) | ✅ YES | Std-flow post drivers work within 21.4 GPM range |
| Cement / Concrete Mixers | ✅ YES | Most drum mixers run 10–18 GPM; S650 std flow handles comfortably |
| Sweepers (angle brooms) | ✅ YES | Hydraulic brooms typically 12–18 GPM |
| Trenchers (std flow models) | ✅ YES | Verify weight: heavy trenchers approach ROC limit — see weight note below |
| Hydraulic Breakers (std flow) | ✅ YES | Most mid-size breakers run 12–22 GPM; check spec sheet |
| Backhoe Attachments | ✅ YES | Mid-size backhoe attachments fit; verify weight vs ROC |
| Attachment | Compatibility | Notes |
|---|---|---|
| Mulchers / Forestry Heads | HF REQUIRED | Mulchers typically require 30+ GPM; S650 HF at 34.8 GPM runs light-to-mid mulchers well |
| Snow Blowers (hydraulic) | HF REQUIRED | Most snow blowers require 25–40 GPM; HF kit needed |
| Rotary Cutters / Brush Cutters | HF REQUIRED | High-speed motors need 28–35 GPM; std flow will underperform |
| Flail Mowers | HF REQUIRED | Commercial flail mowers typically 25–35 GPM |
| Soil Conditioners | HF REQUIRED | Tiller/conditioner heads run 25–38 GPM for full performance |
| Hydraulic Breakers (large) | HF REQUIRED | Large breakers (750+ ft-lb class) need 25+ GPM and higher pressure |
| Cold Planers | HF REQUIRED | Even light cold planers typically need 28–35+ GPM |
| Attachment | Compatibility | Weight Guidance |
|---|---|---|
| Stump Grinders | CHECK WEIGHT | Commercial stump grinders range 1,800–3,500 lbs. S650 ROC is 2,690 lbs — heavy units may exceed this. Verify attachment weight vs ROC before purchase. Also needs HF for most models. |
| Heavy Trenchers | CHECK WEIGHT | Heavy-duty trenchers (rock chain, wide boom) can reach 2,000–2,800 lbs. Check attachment weight rating and ensure ROC isn't exceeded at full dig depth. |
| Large Rock Buckets | CHECK WEIGHT | Heavy rock buckets with thick AR400 plate can weigh 1,500–2,200 lbs empty. Add payload to confirm you're within ROC at your load density. |
Matching attachment width to machine size matters for balance, stability, and performance. The S650's 66" overall width and 2,690 lb ROC drive these recommendations.
Based on what sells through Canadian dealers and what S650 operators actually run in the field:
The S650's 2,690 lb ROC handles standard GP dirt buckets in 66–72" comfortably. Rock buckets and high-capacity buckets work well for material handling. Canadian operators frequently pair the S650 with a 68–72" general-purpose bucket for farmyard and construction site work.
At 2,690 lbs ROC, the S650 handles standard skid building material loads and farm supply pallets without issue. Standard 48" forks are the most common choice. Pallet fork frames with bolt-on spears add bale handling versatility.
Root grapples and brush grapples are a strong match for the S650 — particularly for Ontario woodlot clearing and BC land development work. The 60–72" range works best for balance at this frame size.
The S650 is widely used for commercial snow management in Canadian municipalities and parking lot contractors. A 10'–12' pusher is the most common pairing — large enough for efficient clearing, manageable in the machine's weight and power envelope.
S650 owners who have the high-flow option often run light-to-mid-duty mulchers for woodlot clearing and brush management. At 34.8 GPM, the S650 HF can run mulchers rated for 30–34 GPM. Very aggressive commercial forestry mulchers requiring 40+ GPM are better matched to a larger machine like the S76 or T76.
The Bobcat S650 is out of production. Bobcat replaced the M-Series (which included the S650) with the R-Series platform. The current equivalent is the Bobcat S76.
What this means for S650 owners in Canada:
Browse verified Canadian dealer listings for skid steer attachments that fit the S650.
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